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 - $5.10
NM-Mint Non English - $5.10
Lightly Played - $4.80
Lightly Played Non English - $4.80
Moderately Played - $4.60
Moderately Played Non English - $4.60
Heavily Played - $4.10
Heavily Played Non English - $4.10
Damaged - $3.30
Damaged Non English - $3.30