Primeval Thing
Foundations of Stone Nightmare#5 (x2)
Enemy
(45) 6 X 6 X
Forced: When Primeval Thing enters play, attach cards from the top of the first player's deck to it until the total printed cost of all attached cards is 6 or higher.

X is the printed cost of all attached cards on this card. If there are no cards attached, X is 6.