Karn, Silver Golem (Oversized) [Commander's Arsenal Oversized] Open the Helvault Chief Commander can't attack unless

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

Set: Battlebond Type: Land Rarity: Rare Sea of Clouds enters the battlefield tapped unless you have two or more opponents

and indestructible

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {0} {T}

Karn, Silver Golem (Oversized) [Commander's Arsenal Oversized] Open the Helvault Chief Commander can't attack unlessSet: Commander's Arsenal Oversized Type: Legendary Artifact Creature Golem Rarity: Rare Cost: {5} Whenever Karn, Silver Golem blocks or becomes blocked, it gets 4 +4 until end of turn. {1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.