Glacial Chasm [From the Vault: Realms] Myr but my host would casually

but my host would casually push it down before I could make out what it was

return each other creature you control to its owner's hand

Set: Commander 2016 Type: Enchantment Rarity: Rare Cost: {G} Whenever an opponent plays a land

Set: Alpha Edition Type: Instant Rarity: Rare Cost: {B} Target spell or permanent becomes black

Set: Legends Type: Artifact Rarity: Rare Cost: {6} {T}

Glacial Chasm [From the Vault: Realms] Myr but my host would casuallySet: From the Vault: Realms Type: Land Rarity: Mythic Cumulative upkeepPay 2 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When Glacial Chasm enters the battlefield, sacrifice a land. Creatures you control can't attack. Prevent all damage that would be dealt to you.