Something I stumbled upon.
- Activate Gateway and (no.X) United.
- Normal summon "Hand of the Six Samurai" (1b United/2b Gateway).
- Special summon "Six Samurai Kizan (1st)" (2b United/4b Gateway).
- Search in graveyard or deck for another "Six Samurai Kizan" by removing 4b from your side of the field (0b United/2b Gateway).
- Special summon "Six Samurai Kizan (2st)" (1b United/4b Gateway).
- Search in graveyard or deck for another "Six Samurai Kizan" by removing 4b from your side of the field (0b United/2b Gateway).
- Special summon "Six Samurai Kizan (3rd)" (2b United/4b Gateway).
- Now that all 3 "Kizan"s are on the field, XYZ summon for Evilswam Ouroboros.
- If this is your 1st turn, use the discard effect by removing 1 metal (Kizan).
- Search in graveyard or deck for another "Six Samurai Kizan" by removing 4b from your side of the field (2b United/0b Gateway).
- Special summon that "Kizan". (2b United/4b Gateway).
- Use "Hand of the Six Samurai" to destroy Evilswam Ouroboros.
- Graveyard looks like this: x3 Kizan x1 Evilswam_O.
- Use Gateway effect to add (1st) Kizan to hand again (2b United/0b Gateway).
- Special summon that Kizan (2b United/2b Gateway).
- Repeat process from step 4 but this time your counters will look like this from now on:
(2b United/2b Gateway).- After you have repeated this
process, your opponent's hand should be empty and you should have 4b on
your field. Repeat the process but this time XYZ summon Daigusto Emeral instead. He'll then return all of your Evilswam Ouroboros to the extra deck.- But remember, on your last Daigusto Emeral, make sure you send back the other 2 Daigusto Emeral in graveyard and a Kizan to deck.
- Now, since you have Evilswam Ouroboros (x3) and (x2) Daigusto Emeral back
in the extra deck you're able to banish all of those cards your
opponent discard to the graveyard and repeat process for infinite loop.