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.
Near Mint - $12
Lightly Played - $10
Moderately Played - $9
Heavily Played - $7
Damaged - $6
Near Mint Spanish - $12
Lightly Played Spanish - $10
Moderately Played Spanish - $9
Heavily Played Spanish - $7
Damaged Spanish - $6