Koskun Falls [Homelands] 191a you can Set 1 "Dark

you can Set 1 "Dark Magic Attack"

You may put them on the top and/or bottom in any order

you may return target non-equipment defending card to its owners hand

Set: POP Series 4 Type: Grass Rarity: Uncommon Retreat cost: Colorless

Set: Portal Three Kingdoms Type: Instant Rarity: Uncommon Cost: {W} Cast this spell only during the declare attackers step and only if you've been attacked this step

Koskun Falls [Homelands] 191a you can Set 1 "DarkSet: Homelands Type: World Enchantment Rarity: Rare Cost: {2}{B}{B} 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.