At the beginning of your end step, for each player, put a +1/+1 counter on up to one target creature that player controls. Each creature with one or more counters on it can't attack you or planeswalkers you control unless its controller pays {X}, where X is the number of counters on that creature.
NM-Mint - $4.60
Lightly Played - $4.20
Moderately Played - $3.70
Heavily Played - $3.30
Damaged - $2.30
NM-Mint Non English - $4.60
Lightly Played Non English - $4.20
Moderately Played Non English - $3.70
Heavily Played Non English - $3.30
Damaged Non English - $2.30