Olivia, Mobilized for War [Shadows over Innistrad Prerelease Promos] Ugin's Fate 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

2 — Add {W}

" —Ella Wheeler Wilcox

if no creatures are on the battlefield

they tap all lands with mana abilities they control and lose all unspent mana

Olivia, Mobilized for War [Shadows over Innistrad Prerelease Promos] Ugin's Fate You may spend blue manaSet: Shadows over Innistrad Prerelease Promos Type: Legendary Creature Vampire Knight Rarity: Mythic Cost: {1}{B}{R} Flying Whenever another creature enters the battlefield under your control, you may discard a card. If you do, put a +1 +1 counter on that creature, it gains haste until end of turn, and it becomes a Vampire in addition to its other types.