Breloom

You may sacrifice a creature named Shroomish
rather than pay this spells mana cost.
Whenever a creature deals combat damage to
Breloom, detain that creature and reveal the top
card of your library. If it's a creature card, put a
-1/-1 counter on the detained creature if it's
nonartifact and not both black and green.
{t}: Put a stun counter on target tapped creature.
{t}: Breloom deals damage equal to half its power rounded down to target tapped creature.