Quicksilver Elemental [Mirrodin] 21a Undergrowth — When you cast

Undergrowth — When you cast this spell

If it's a Shadow card

but their every movement is in time with its ticking

Set: Rise of the Eldrazi Type: Enchantment — Aura Rarity: Rare Cost: {2}{G}{G} Enchant creature

while this card is in your GY: You can add this card to your hand

Quicksilver Elemental [Mirrodin] 21a Undergrowth — When you castSet: Mirrodin Type: Creature Elemental Rarity: Rare Cost: {3}{U}{U} {U}: Quicksilver Elemental gains all activated abilities of target creature until end of turn. (If any of the abilities use that creature's name, use this creature's name instead.) You may spend blue mana as though it were mana of any color to pay the activation costs of Quicksilver Elemental's abilities.