Riddlekeeper [Commander 2011] Duels of the Planeswalkers Promos 2012 Set: War of the Spark

Set: War of the Spark Prerelease Promos Type: Legendary Planeswalker — Karn Rarity: Rare Cost: {4} Activated abilities of artifacts your opponents control can't be activated

ripping itself a new entrance

Set: Secret Lair Drop Series Type: Enchantment — Aura Rarity: Rare Cost: {G} Enchant land

Set: Innistrad: Crimson Vow Type: Enchantment — Rarity: Mythic Cost: {3}{U} Whenever a nontoken Zombie enters the battlefield under your control

with the twist that eight packs (they'll be clearly marked) will each come with one of 8 different foil planeswalker cards inside the pack (plus the normal rare or mythic rare card)

Riddlekeeper [Commander 2011] Duels of the Planeswalkers Promos 2012 Set: War of the SparkSet: Commander 2011 Type: Creature Homunculus Rarity: Rare Cost: {2}{U} Whenever a creature attacks you or a planeswalker you control, that creature's controller mills two cards. Fools surrender their sanity to his riddles. Even greater fools try to solve them.