Koskun Falls [Homelands] Eternal Masters at the beginning of each

at the beginning of each of your upkeeps for the rest of the game

Set: Gatecrash Type: Land — Mountain Plains Rarity: Rare ({T}: Add {R} or {W}

−7: Exile the top ten cards of your library

Set: Unlimited Edition Type: Land — Mountain Forest Rarity: Rare ({T}: Add {R} or {G}

Sacrifice this artifact: Add one mana of any color

Koskun Falls [Homelands] Eternal Masters at the beginning of eachSet: 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.