Grenzo, Dungeon Warden (TSR) (Timeshifted)

Grenzo, Dungeon Warden  (2) 
Legendary Creature — Goblin Rogue (2/2)
Grenzo, Dungeon Warden enters the battlefield with X +1/+1 counters on it.
: 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.