Instants & Sorceries - 28
C Common Fusion Destiny X SPELL Fusion Summon 1 Fusion Monster from your Extra Deck that mentions a "Destiny HERO" monster as material, using monsters from your hand or Deck as Fusion Material, but destroy it during the End Phase of the next turn, also for the rest of this turn after this card resolves, you cannot Special Summon monsters, except DARK "HERO" monsters
Decidueye costs 150 Pack Points to craft
There are plenty of ways to win the game from that position
He has a Special Summon meta
If this card, Special Summoned by the effect of a "Number" Xyz Monster, is destroyed: You can Special Summon other "Stealth Kragen" monsters from your GY, up to the number of materials this card had, then you can attach up to 1 WATER monster from your GY to each of those Special Summoned monsters as material