Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by banishing 1 face-up monster you control with 2500 original ATK and DEF. You can only Special Summon "Regenesis God Deuteronomion" once per turn this way. If this card is Special Summoned: You can Set 1 "Regenesis" Spell/Trap from your Deck. Gains 2500 ATK during the Battle Phase only. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent.