City of Brass [Junior Super Series] Human Scout sacrifice Draco unless you pay

sacrifice Draco unless you pay {10}

Set: Gatecrash Type: Creature — Elf Wizard Rarity: Mythic Cost: {2}{G}{U} Each other creature you control enters the battlefield with a number of additional +1/+1 counters on it equal to Master Biomancer's power and as a Mutant in addition to its other types

Set: Masters 25 Type: Enchantment — Aura Rarity: Uncommon Cost: {G} Enchant Forest

Sacrifice Vile Requiem: Destroy up to X target nonblack creatures

but because you're there

City of Brass [Junior Super Series] Human Scout sacrifice Draco unless you paySet: Junior Super Series Type: Land Rarity: Rare Whenever City of Brass becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color. "Enter this palace gate and ask the news Of greatness fallen into dust and clay." *The Arabian Nights*, trans. Burton