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 - $1.500
Lightly Played - $1.200
Moderately Played - $1.100
Heavily Played - $900
Damaged - $800
Near Mint Spanish - $1.500
Lightly Played Spanish - $1.200
Moderately Played Spanish - $1.100
Heavily Played Spanish - $900
Damaged Spanish - $800