Austere Command (Invocation) [Amonkhet Invocations] Karn that player plays with that

that player plays with that card revealed in their hand and can't play it

"May the River claim Cho-Manno's body

Set: Commander 2011 Type: Enchantment Rarity: Rare Cost: {1}{B}{B}{B} Whenever a creature you control dies

You may put that card into your hand unless it has the same name as another card exiled this way

If you don't or can't make an exchange

Austere Command (Invocation) [Amonkhet Invocations] Karn that player plays with thatSet: Amonkhet Invocations Type: Sorcery Rarity: Mythic Cost: {4}{W}{W} Choose two Destroy all artifacts. Destroy all enchantments. Destroy all creatures with converted mana cost 3 or less. Destroy all creatures with converted mana cost 4 or greater.