Shroomish

You may cast Shroomish from your graveyard
if you sacrifice a Plant or a Berry in addition
to paying its mana cost to cast it.
Whenever a creature deals combat damage to
Shroomish, detain that creature. (Until your next
turn, that permanent can't attack or block and its
activated abilities can't be activated.)
{g}: Shroomish gets +0/+1 until end of turn.