Mana Vault [Fourth Edition (Foreign White Border)] Azra Assassin Sacrifice two artifacts: Return Metalwork

Sacrifice two artifacts: Return Metalwork Colossus from your graveyard to your hand

but his answer is always "no

Whenever you win a coin flip

Set: Unlimited Edition Type: Creature — Cockatrice Rarity: Rare Cost: {3}{G}{G} Flying

Set: Classic Sixth Edition Type: Land Rarity: Uncommon {T}: Add {C}

Mana Vault [Fourth Edition (Foreign White Border)] Azra Assassin Sacrifice two artifacts: Return MetalworkSet: Fourth Edition (Foreign White Border) Rarity: Rare Mana Vault does not untap during your untap phase. If it remains tapped during your upkeep, Mana Vault deals 1 damage to you. 4: Untap Mana Vault. Use this ability only during your upkeep. T: Add three colorless mana to your mana pool. Play these additions as interrupts.