Quicksilver Elemental [Mirrodin] Eldritch Moon Prerelease Promos At the beginning of enchanted

At the beginning of enchanted player's upkeep

Set: Beta Edition Type: Artifact Rarity: Uncommon Cost: {1} Whenever a player casts a white spell

that player discards a card instead

Set: From the Vault: Twenty Type: Legendary Planeswalker — Jace Rarity: Mythic Cost: {2}{U}{U} +2: Look at the top card of target player's library

but its power was unmistakable

Quicksilver Elemental [Mirrodin] Eldritch Moon Prerelease Promos At the beginning of enchantedSet: 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.