Cloudthresher [Lorwyn] Portal Three Kingdoms Roar of the World is

Roar of the World is in the command zone or on the battlefield

Set: Aether Revolt Type: Artifact — Vehicle Rarity: Rare Cost: {3} {1}{W}: Another target Vehicle you control becomes an artifact creature until end of turn

When Mulldrifter enters the battlefield

that blade is your guardian

Mercy is for the playground

Cloudthresher [Lorwyn] Portal Three Kingdoms Roar of the World isSet: Lorwyn Type: Creature Elemental Rarity: Rare Cost: {2}{G}{G}{G}{G} Flash Reach When Cloudthresher enters the battlefield, it deals 2 damage to each creature with flying and each player. Evoke {2}{G}{G} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)