Metallic Mimic [Aether Revolt Promos] Core Set 2019 if All Hallow's Eve is

if All Hallow's Eve is exiled with a scream counter on it

Set: Arena League 2003 Type: Basic Land — Plains Rare Cost: ({T}: Add {W}

Set: Arabian Nights Type: Creature — Human Uncommon Cost: {U} Merchant Ship can't attack unless defending player controls an Island

that player puts that card onto the battlefield and all other cards revealed this way into their graveyard

blast those elves

Metallic Mimic [Aether Revolt Promos] Core Set 2019 if All Hallow's Eve isSet: Aether Revolt Promos Type: Artifact Creature Shapeshifter Rare Cost: {2} As Metallic Mimic enters the battlefield, choose a creature type. Metallic Mimic is the chosen type in addition to its other types. Each other creature you control of the chosen type enters the battlefield with an additional +1 +1 counter on it.