Grenzo, Dungeon Warden enters the battlefield with X +1/+1 counters on it.
2: Put the bottom card of your library into your graveyard. If it's a creature card with power less than or equal to Grenzo's power, put it onto the battlefield.
Near Mint - $900
Lightly Played - $700
Moderately Played - $600
Heavily Played - $500
Damaged - $500
Near Mint Spanish - $900
Lightly Played Spanish - $700
Moderately Played Spanish - $600
Heavily Played Spanish - $500
Damaged Spanish - $500