Mountain (4) [Arena League 2005] Avatar Minion Chief Commander can't attack unless

Chief Commander can't attack unless defending player controls an Island

That land is a Swamp for as long as it has a mire counter on it

Each creature you control that's a Wolf or a Werewolf gets +1/+1 and has trample

Set: Hour of Devastation Prerelease Promos Type: Sorcery Rarity: Rare Cost: {3}{W}{W}{W} This spell costs {3} less to cast if there are ten or more nonland permanents on the battlefield

Set: Commander 2013 Type: Creature — Vedalken Wizard Rarity: Rare Cost: {1}{U}{U} {U}

Mountain (4) [Arena League 2005] Avatar Minion Chief Commander can't attack unlessSet: Arena League 2005 Type: Basic Land Mountain Rarity: Rare ({T}: Add {R}.)