Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare Champion Pack 8 You suffer 1 damage whenever

You suffer 1 damage whenever City of Brass becomes tapped

put a +1/+1 counter on it

{T}: Add {U} or {B}

Set: From the Vault: Relics Type: Artifact Creature — Masticore Rarity: Mythic Cost: {4} At the beginning of your upkeep

Set: Kaladesh Prerelease Promos Type: Legendary Creature — Elf Druid Rarity: Mythic Cost: {2}{G}{U} Whenever you cast your first spell each turn

Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare Champion Pack 8 You suffer 1 damage wheneverSet: Generation Force Card type: Xyz Effect Monster Rarity: Ultimate Rare Attack: 2000 Defense: 0 2 Level 3 monsters Once per turn: You can detach 1 Xyz Material from this card, this card gains 500 ATK. If this card has no Xyz Materials, it cannot attack your opponent directly.