Cephalid Coliseum [From the Vault: Realms] Time Spiral Timeshifted if another creature is on

if another creature is on the battlefield

Set: Judge Gift Cards 2010 Type: Artifact Creature — Dreadnought Rare Cost: {1} Trample When Phyrexian Dreadnought enters the battlefield

Set: Exodus Type: Artifact Rare Cost: {2} Spells cost {1} more to cast

Sacrifice Arid Mesa: Search your library for a Mountain or Plains card

{9}: Untap Colossus of Sardia

Cephalid Coliseum [From the Vault: Realms] Time Spiral Timeshifted if another creature is onSet: From the Vault: Realms Type: Land Mythic Cost: {T}: Add {U}. Cephalid Coliseum deals 1 damage to you. Threshold {U}, {T}, Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate this ability only if seven or more cards are in your graveyard.