Mishra's Factory [Fourth Edition (Foreign Black Border)] Azra Assassin the player can activate mana

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

one must bring a riddle she has not heard

If each of those creatures could block all creatures that the other is blocking

Set: Commander 2013 Type: Sorcery Rarity: Rare Cost: {R}{G}{W} Fiery Justice deals 5 damage divided as you choose among any number of targets

Set: Scars of Mirrodin Type: Artifact Creature — Phyrexian Wurm Rarity: Mythic Cost: {6} Deathtouch

Mishra's Factory [Fourth Edition (Foreign Black Border)] Azra Assassin the player can activate manaSet: Fourth Edition (Foreign Black Border) Type: Land Rarity: Uncommon {T}: Add {C}. {1}: Mishra's Factory becomes a 2 2 Assembly Worker artifact creature until end of turn. It's still a land. {T}: Target Assembly Worker creature gets +1 +1 until end of turn.