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 - $5.50
Lightly Played - $5.00
Moderately Played - $4.40
Heavily Played - $3.90
Damaged - $2.80
NM-Mint Non English - $5.50
Lightly Played Non English - $5.00
Moderately Played Non English - $4.40
Heavily Played Non English - $3.90
Damaged Non English - $2.80