At the beginning of your upkeep, sacrifice Koskun Falls unless you tap an untapped creature you control. Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.
NM-Mint - $10.10
Lightly Played - $9.10
Moderately Played - $8.10
Heavily Played - $7.10
Damaged - $5.10
NM-Mint Non English - $10.10
Lightly Played Non English - $9.10
Moderately Played Non English - $8.10
Heavily Played Non English - $7.10
Damaged Non English - $5.10