Dinovatus Docus

You can only Special Summon "Dinovatus Docus(s)" once per turn. If you control 2 or more Dinosaur monsters: You can Special Summon this card from your hand. You can Tribute 1 Level 4 or lower monster; Special Summon 1 Dinosaur monster from your Deck that is 2 Levels higher or lower than the Tributed monster, but destroy it during the End Phase. You can only use this effect of "Dinovatus Docus" once per turn.