Opalescence [Urza's Destiny] The Dark You may spend blue mana

You may spend blue mana as though it were mana of any color to pay the activation costs of Quicksilver Elemental's abilities

Repeat this process until no one pays life

players can't untap more than two permanents during their untap steps

Set: Kaladesh Prerelease Promos Type: Artifact Rarity: Rare Cost: {4} Whenever you cast a spell

Venand Kapur—known as the Gearherder—built this automaton to keep watch over his clockwork herds

Opalescence [Urza's Destiny] The Dark You may spend blue manaSet: Urza's Destiny Type: Enchantment Rarity: Rare Cost: {2}{W}{W} Each other non Aura enchantment is a creature in addition to its other types and has base power and base toughness each equal to its mana value.