Adamancipator Signs – (2021 Tin of Ancient Battles) – (MP21-EN234) – (Prismatic Secret Rare)

Target 1 Rock monster in your GY; Special Summon it in Defense Position, then, if you Special Summoned an “Adamancipator” monster by this effect, you can take 1 Level 4 or lower Rock monster from your Deck and place it on top of your Deck.