You can Tribute Summon this card in Attack Position by Tributing 1 Dinosaur monster.
[REQUIREMENT] Send the top card of the Deck to the GY.
[EFFECT] Choose 1 face-up monster on your or your opponent’s field and have it lose 800 ATK until the end of the turn, then, you can choose 1 Dinosaur Maximum Monster in your GY and add it to the hand.