Doubling Cube [Tenth Edition] Merfolk Set: Ninth Edition Type: Enchantment

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

wistfully caressing— The deepened air sleeps its cold

Set: Alpha Edition Type: Instant Rarity: Common Cost: {1}{B} Destroy target nonartifact

Set: Kaladesh Inventions Type: Artifact Creature — Construct Rarity: Mythic Cost: {3}{G}{G} Trample

you may play that card

Doubling Cube [Tenth Edition] Merfolk Set: Ninth Edition Type: EnchantmentSet: Tenth Edition Type: Artifact Rarity: Rare Cost: {2} {3}, {T}: Double the amount of each type of unspent mana you have. The cube's surface is pockmarked with jagged runes that seem to shift when unobserved.