[SPWR] Raidraptor - Last Strix

During damage calculation, when a "Raidraptor" monster you control battles: You can Special Summon this card from your hand, then, you gain 100 LP for each Spell/Trap Card you control and in your Graveyard. You can Tribute this card; Special Summon 1 "Raidraptor" Xyz Monster from your Extra Deck, but its effects are negated, it is returned to the Extra Deck during the End Phase, also your opponent takes no battle damage for the rest of this turn. You can only use this effect of "Raidraptor – Last Strix" once per turn.