Interesting deck, but not quite up to standards. So I'ma help. (I love HEROs, so I usually know what I'm doing.)
Let's start this extensive review!
Monsters
You run:
3x Elemental HERO Shadow Mist
3x Elemental HERO Bubbleman
2x Elemental HERO Heat
1x Elemental HERO Woodsman
1x Elemental HERO Wildheart
1x Elemental HERO Neos Alius
1x King of the Swamp
My recommendations:
- This is how an old HERO deck would've been run, sorry to say. You don't need quite that much variety in HEROs, or that many monsters.
- Chuck Elemental HERO Heat, Elemental HERO Woodsman, and King of the Swamp. You'll be getting rid of Polymerization later on, and Elemental HERO Heat is pretty bad in terms of this deck. The reason being is that he is Mask Changed into Masked HERO Goka, which has an horrid effect in comparison to the other Masked HERO monsters. Heat itself is also a Pyro-Type Monster, which makes it so that you can't search him with Reinforcement of the Army. Not very good for HEROs.
- Elemental HERO Wildman isn't super great, but he's an effect counter to the Trap-Heavy HAT decks of the format. Masked HERO Dian is also no pushover. Bump Wildheart up to 2 and move him into your Side Deck. In an average duel he's average. But against HAT monsters, you'll find no better annoying ass beater. (Credit to Galaksii for suggesting the use of Wildheart.)
- Bump Elemental HERO Neos Alius up to 3. At first glance, Neos Alius doesn't look too useful, being that he's an effect monsters with a pretty shitty effect. And you're right, that effect is shitty. However, Elemental HERO Neos Alius has some attributes that make it a preferred choice over other level 4 HERO monsters. First and foremost, Neos Alius is a Warrior-Type monster, meaning that you can grab the sucker with Reinforcement of the Army AND E-Emergency Call. It increases the how effectively you can search out the card and grab it from your deck when you need it. Not only this, but HEROs now need Xyz Monster support in the format, due to how slow they can be without their Fusion spells. Being a Warrior-Type monster means that Neos Alius can be used as Xyz Material for two of the best Warrior-Type exclusive Xyz Monsters that HEROs have access to: Heroic Champion - Excalibur, and Blade Armor Ninja. Having access to those two will bring some serious heat against the opponent. Secondly, Elemental HERO Neos Alius is a LIGHT attributed monster. This allows you to go into two of the Elemental HERO's most deadly Extra Deck monsters: Elemental HERO The Shining, and Masked HERO Koga. Both have super awesome effects, and being able to play them out at a moments notice is exactly what the deck needs. Lastly, Neos Alius carries 1900 ATK. This is a huge bonus for Neos Alius, because that means if you can't Mask Change, Miracle Fusion, or Overlay him, he can still take a solid swing at the opponent, and the extra life points Neos Alius carves off can make or break the duel. Also, this means that Neos Alius won't get run over by very many level 4 monsters from other decks.
Ex. HAT decks run Traptrix Myrmeleo and Traptrix Dionaea, which have 1600 and 1700 ATK respectively. If you're running a different Elemental HERO LIGHT monster, you'd get run over, since the other ones are Elemental HERO Sparkman (1600 ATK), Elemental HERO Voltic (1000 ATK) Elemental HERO Flash (1100 ATK), Elemental HERO Prisma (1700 ATK) and Elemental HERO Captain Gold, which, while having 2100 ATK, requires Skyscraper to be active, which is waste of space because Skyscraper is such a shitty card.
- Lastly, I highly recommend Summoner Monk. Summoner Monk is great for quick Xyz Summons, since he's Special Summoning a Monster from your deck. You run an awful lot of Spells in this deck, meaning you'll usually have material to discard to activate Summoner Monk's effect. Not only that, but since Summoner Monk is Special Summoning monsters, you can bring out Elemental HERO Shadow Mist, and use his effect to snatch up a Change Spell Card. Plus, when you Xyz Summon a Monster and activate the effect which will require Xyz Material to be detached, you're setting up your Graveyard full of HERO monsters, which can help you in numerous ways, such as:
--Miracle Fusion fodder
--Call of the Haunted targets
--Soul Charge targets
--Boosts Elemental HERO Escuriado's ATK points.
Short version, this is what I think should happen to your monsters:
3x Elemental HERO Shadow Mist - Keep the same
3x Elemental HERO Bubbleman - Keep the same
2x Elemental HERO Heat - Remove all
1x Elemental HERO Woodsman - Remove all
1x Elemental HERO Wildheart - +1 and move to Side Deck OR Remove all
1x Elemental HERO Neos Alius - +2
1x King of the Swamp - Remove all
+2 Summoner Monk
Now, let's move on, shall we?
For your Spells now.
You run:
1x Reinforcement of the Army
3x E - Emergency Call
2x A HERO Lives
2x Polymerization
3x Miracle Fusion
3x Mask Change
2x Battle Fusion
2x Super Polymerization
3x Form Change
1x Mask Change Second
1x Dark Hole
2x Magnum Shield
My recommendations:
-Wow. Lots and lots of spells. Let's get started, shall we?
-Take out one A HERO Lives. The card is great, I know, but cutting your life points in half twice is not really great in a duel. A lot of times the card is also a dead draw, and you'll get it when you don't really need it. It can be discard with Summoner Monk, but at 2, the card just isn't practical. It was great when HEROs could OTK, but they can't anymore. So yeah, A HERO Lives at one.
-No Poly. Super Poly is good, but normal Poly? No! Normal Polymerization is now one of the more cloggy cards. If it's a final, desperate draw, Miracle Fusion will help ya a lot more. Poly will kill you, and you want to reduce that. Also, Polymerization will really lack targets a LOT in this deck. Most of the time, you won't have enough HERO monsters in your hand and on your field to perform Polymerization, or will be having to get rid of a good Masked HERO to do it. Miracle Fusion allows for targets to be in the Graveyard instead of the Hand, which significantly increases it's usefulness over Polymerization. Plus, having so many Fusion Monster summoning cards in your deck is a real killer in a lot of situations. Ditch Polymerization.
-Battle Fusion isn't that great. In theory, it works well, but in practical use, it doesn't. There's going to be a lot of times where you draw the card, and you WON'T have a HERO Fusion on the Field. It's requirements are quite specific, meaning it'll be incredibly situational, just like Honest would be in this deck. There are so many other Spells that'll make your deck run much more smoothly than Battle Fusion that the slots taken by it are being wasted. Ditch the card.
-Super Polymerization. I love this card. Love, love LOVE this card. However, when in the Main Deck, Super Poly doesn't always get the job done. There will be several decks that Super Poly won't match up well against. The reason being is that this HERO deck needs the Masked HEROs, Omni HEROs, AND Xyz Monsters to run efficiently. Because of this, some of the Omni HEROs have to be cut from useage, making the deck suffer from 15-Slot Extra Deck Syndrome. There will be cards that you just won't be able to play Super Poly against, and so I would move it to the Side Deck. That way you can Side it in during matches against decks that you really need it to fight.
-Form Change. Great in theory, terrible in practice. I learned this the hard way. You may assume that you're going to be using this card a ton, but in reality, you won't be. This card will be super situational, and since your Extra Deck can only hold 15 cards, you'll find that you won't have a lot of stuff to Form Change into, and sometimes Form Change won't do anything for you at all! I really wish this card could be used, but right now, it's just dead weight. Ditch it.
-Dark Hole is out of style. Badly. Shaddolls, Fire Kings, even other HERO decks LOVE to get Dark Holed, and the card won't even phase HAT Decks. So much can work against it right now that it's just not worth it. Ditch the card.
-Magnum Shield. Seems like a great card, but there's going to be so much else that you can run. There are a lot of cards that'll find other ways to articulate your monster's demise, even with this fantastic card equipped. HEROs also aren't really searching for ATK boosts. They're searching for cards that'll get the huge roadblocks out of the way so that they can get rid of the lower monsters and punch their way to victory. While it's a good looking card, it's not really worth the slots. If you want to use it, experiment with it in Noble Knight decks. Those things are Equip Spell happy.
-Add Soul Charge. This card is fantastic for the deck. Just one will have all the effect you need. You can pay Life Points and revive up to 5 HERO monsters from the Graveyard. Pay 1000 and pull out Shadow Mist and get off his effect, then set Mask Change for the next turn. Pay 2000 and pull any two Elemental HERO monsters out and Overlay them for an Xyz Summon. Already have Mask Change? GREAT! Pull out Bubbleman, Alius, or Shadow Mist to get whichever Masked HERO you need! The possibilities are ENDLESS. This card is a great replacement to the currently banned Monster Reborn, so USE IT! HEROs really suffered when Reborn was banned.
-Chuck in a Mask Charge. Have a HERO and a Mask Change in your Graveyard? Great! Free recycling of the cards, all for the low, low price of one Spell card! One or two of them will be all you need to kick some serious ass!
-Mystical Space Typhoon. Where you want to put it is your call, but Masked HERO Acid won't always get the job done. Chuck in a couple into either the Main or Side Deck, and it'll get rid of frustrating obstacles that are in the form of set Traps. But beware. DO NOT USE THESE AGAINST HAT DECKS! IT WILL BE YOUR END!
Short version of what I think should happen to your Spells:
1x Reinforcement of the Army - Keep the same (+1 when July 14th Banlist kicks in.)
3x E - Emergency Call - Keep the same
2x A HERO Lives - Remove 1
2x Polymerization - Remove all
3x Miracle Fusion - Keep the same
3x Mask Change - Keep the same
2x Battle Fusion - Remove all
2x Super Polymerization - Move all to Side Deck
3x Form Change - Remove All
1x Mask Change Second - Keep the same
1x Dark Hole - Remove all
2x Magnum Shield - Remove all
+1 Soul Charge
+1 - 2 Mask Charge
+2 Mystical Space Typhoon - To either Main or Side. Your choice.
Time to move ahead to your Trap cards! : 3
Let's see what you run:
x3 Royal Decree
My recommendations:
-That's it? Wow. Sorry mate, but you're gonna need a lot more.
-Get rid of all three of them. You're not gonna get a lot of use out of Royal Decree. Elemental HEROs need other Traps to help them keep up with the game. By activating Royal Decree, you're saying "Fuck you" to all your other traps, and making them dead draws. Not beneficial, whatsoever.
-Staples are key for this deck. Add the following, since they will stall the hell out of your opponent, and get rid of big things that block your path:
Bottomless Trap Hole
Compulsory Evacuation Device
Solemn Warning
Torrential Tribute
Dimensional Prison
-Add two Black Horn of Heaven. This card is fantastic for the deck, because it NEGATES Special Summons! Artifacts that use Artifact Ignition to blow up themselves need to be cautious, as Black Horn of Heaven is going to get them when they least expect it. Xyz and Synchro Monsters also suddenly get their Summons negated because Black Horn says "Oh, that's a nice monster you're summoning. Be a shame if something happened to it~". Basically, it's one of the best trap cards out there at the moment.
-I like running Call of the Haunted in this deck. It allows me to combo with Elemental HERO Shadow Mist to grab a Mask Change for useage. It's a quick way to bring out Masked HERO Dark Law when you need him, and also a nice way to stall/block attacks if you're in a pinch. Run like 2 of them.
-Nice replacement for Royal Decree is Trap Stun. It doesn't last for as long as Royal Decree stays on the field, so your Traps are still free to be activated most of the time. It just stops your opponent. Great against HAT decks.
So, in short, this is what I think should happen to your traps:
3x Royal Decree - Remove all
+1 Bottomless Trap Hole
+1 Solemn Warning
+1 Compulsory Evacuation Device
+1 Torrential Tribute
+2 Dimensional Prison
+2 Black Horn of Heaven
+2 Call of the Haunted
+2 Trap Stun
So, let's move on, shall we?
To your Side Deck! You run:
1x Masked HERO Dian
1x Masked HERO Vapor
1x Magical Cylinder
1x Negate Attack
1x Bottomless Trap Hole
1x Solemn Warning
2x Mirror Force
1x Fiendish Chain
1x Fusion Gate
1x Number 39: Utopia
2x Dimensional Prison
2x Breakthrough Skill
My recommendations:
-Wow. Lot of random stuff in here. Not exactly what you need for the deck though. So I'm going to assume we dumped this whole thing and started over. If you'd like a more indepth explanation of why, just ask, and I'll give one. But right now, explaining would take a lot of time, and I started this post like, an hour ago.
This is what we'll start with:
2x Super Polymerization
2x Elemental HERO Wildheart
1x Masked HERO Dian
2x Breakthrough Skill
That's the good stuff. The really good stuff. So let's continue.
-Add in 2 Maxx "C". Anything that's Special Summon heavy, like Shaddolls and Sylvans will let you get a crap ton of draw power with this card, and your deck will speed up big time. If you run into those decks. Maxx "C" is really helpful, because a lot of the time, you'll draw into the card you need.
-Add in 2 System Down. This card will get rid of the ever frustrating Geargia monsters, which are a big competitor right now. I highly recommend this card, because they're so hard to deal with, and, sadly, this deck doesn't carry enough room to run Elemental HERO Gaia.
-Throw in a couple of Debunks. This'll help you deal with Hand Traps, such as Maxx "C", Effect Veiler, Gorz the Emissary of Darkness, and will also help you in mirror matches against Elemental HERO Bubbleman and Elemental HERO Shadow Mist. Since the card also stops effects in the Graveyard, it'll help more in mirror matches by stopping Elemental HERO The Shining and Elemental HERO Absolute Zero, as well as totally shutting down Shaddolls and Fire Kings.
-I like crushing minds. I like getting rid of annoying ass cards in opponent's hands. Therefore, I like Mind Crush. Mind Crush is a great side in card because if the opponent's deck is predictable enough (as in, if it's mainstream meta enough) you can usually predict what your opponent has in their hand and get rid of it. Use it to piss off anyone dumb enough to run meta, garunteed. : D
So in short, this is what I feel should happen to your side deck:
1x Masked HERO Dian - Keep the Same
1x Masked HERO Vapor - Remove All
1x Magical Cylinder - Remove All
1x Negate Attack - Remove All
1x Bottomless Trap Hole -Move to Main
1x Solemn Warning - Move to Main
2x Mirror Force - Remove all (Before new list come out, have one in main, then replace with a second ROTA)
1x Fiendish Chain - Remove All
1x Fusion Gate - Remove All
1x Number 39: Utopia - Remove All
2x Dimensional Prison - Move to Main
2x Breakthrough Skill - Keep the Same
+2 Maxx "C"
+2 System Down
+2 Debunks
+2 Mind Crush
+2 Super Polymerization
This has been an hour and a half of work. But there's still the Extra Deck to go. LET'S DO THIS!
You run:
2x Elemental HERO Absolute Zero
1x Elemental HERO Nova Master
1x Elemental HERO The Shining
1x Elemental HERO Escuridao
1x Elemental HERO Gaia
1x Masked HERO Dian
2x Masked HERO Acid
1x Elemental HERO Core
2x Masked HERO Dark Law
1x Contrast HERO Chaos
1x Masked HERO Goka
1x Gagaga Cowboy
My recommendations:
-Dude, I wish I could run all this stuff in my HERO Extra Deck. Sadly though, this deck suffers from only have 15 Extra Deck slots, and so we must prioritise.
-Dump one Absolute Zero. Not enough room for two
-Dump Gaia. Not enough room to run
-Dump Dian. He's in Side Deck already.
-Dump Chaos. Too situational to run
-Dump Goka. He's just Elemental HERO Escuridao with FIRE attribute and worse ATK/DEF.
-Throw in a couple Masked HERO Koga. He's too good not to run. Nice effect, great ATK.
-You have three slots left. Use these for Heroic Champion - Excalibur, Abyss Dweller, and Evilswarm Exciton Knight. These Xyz Monsters will help you out in a pinch, and are great to use in near any situation. Blade Armor Ninja is also a fantastic monster to use, and it's your choice whether you use him or Gagaga Cowboy. Both are great cards, and I have a hard time choosing between them for my deck.
So, in short, this is what I think needs to happen to your Extra Deck:
2x Elemental HERO Absolute Zero - Remove One
1x Elemental HERO Nova Master - Keep the same
1x Elemental HERO The Shining - Keep the same
1x Elemental HERO Escuridao - Keep the same
1x Elemental HERO Gaia - Remove all
1x Masked HERO Dian - Remove all
2x Masked HERO Acid - Keep the same
1x Elemental HERO Core - Keep the same
2x Masked HERO Dark Law - Keep the same
1x Contrast HERO Chaos - Remove all
1x Masked HERO Goka - Remove all
1x Gagaga Cowboy - Keep the same OR replace with Blade Armor Ninja
+2 Masked HERO Koga
+1 Abyss Dweller
+1 Evilswarm Exciton Knight
+1 Heroic Champion - Excalibur
That's all I really have in terms of advice for you. I hope you found this post helpful. :3