NetherlithicorNether Traitor Buy + Cryptolith Rite Buy + Goblin Bombardment Buy
You need another Nether Traitor in your graveyard.
Tap the Traitor (has haste) for 1 black mana, sac it to the Bombardment and deal 1 damage, put the other Traitor in play...go on.
Can be used with other sac engine.
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