Bloodline Necromancer, Molten Echoes, and Ashnod's Altar

Prerequisites

• Bloodline Necromancer in hand
• Molten Echoes on the battlefield
• Ashnod's Altar on the battlefield
• "Vampire" or "Wizard" chosen with Molten Echoes
• available

Steps

1. Cast Bloodline Necromancer by paying
2. Bloodline Necromancer enters the battlefield, triggering itself and Molten Echoes
3. Resolve the Bloodline Necromancer trigger, returning a Vampire or Wizard creature card from your graveyard to the battlefield
4. Activate Ashnod's Altar by sacrificing Bloodline Necromancer, adding
5. Resolve the Molten Echoes trigger, creating a token copy of Bloodline Necromancer with haste
6. The token Bloodline Necromancer enters the battlefield, returning the nontoken Bloodline Necromancer from your graveyard to the battlefield
7. Repeat from step 2

Results

• Infinite colorless mana
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Return all Vampires and Wizards from your graveyard to the battlefield