Mishra's Factory (Mark Justice) [Pro Tour Collector Set] Sliver Mutant if Nether Shadow is in

if Nether Shadow is in your graveyard with at least three creature cards above it

Set: Zendikar Expeditions Type: Land — Plains Island Rarity: Mythic ({T}: Add {W} or {U}

then is discarded

Set: Magic 2014 Type: Enchantment Rarity: Rare Cost: {B}{B}{B} Whenever a creature you control dies

Flashback—{1}{U}

Mishra's Factory (Mark Justice) [Pro Tour Collector Set] Sliver Mutant if Nether Shadow is inSet: Pro Tour Collector Set 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.