The Forest Patrol

Begin the game with this card revealed.
Creatures with land walk abilities can be
blocked as though they didn't have the
ability.
Unblockable or "can't be blocked" gain
defender, and gain "during your upkeep
put a spore counter on this creature.
Remove two spore counters, create a
1/1 Saproling token with defender."
Creatures can't attack unless its controller
pays {3} for each attacking creature.