Name:Koskun Falls
ManaCost:2 B B
Types:World Enchantment
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigUpkeep | TriggerDescription$ At the beginning of your upkeep, sacrifice CARDNAME unless you tap an untapped creature you control.
SVar:TrigUpkeep:DB$ Sacrifice | UnlessPayer$ You | UnlessCost$ tapXType<1/Creature>
S:Mode$ CantAttackUnless | ValidCard$ Creature | Target$ You | Cost$ 2 | Description$ Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.
SVar:NeedsToPlayVar:Y GE1
SVar:Y:Count$Valid Creature.YouCtrl
Oracle:At the beginning of your upkeep, sacrifice Koskun Falls unless you tap an untapped creature you control.\nCreatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.
