You can Special Summon this card (from your hand) by revealing another monster with 2500 ATK or DEF in your hand. You can only Special Summon "Regenesis Archfiend" once per turn this way. You can only use each of the following effects of "Regenesis Archfiend" once per turn. If this card is Normal or Special Summoned: You can add 1 "Regenesis" card from your Deck or banishment to your hand, except "Regenesis Archfiend". During your opponent's End Phase, if this card is in the GY because it was sent there this turn: You can add this card to your hand.