Bloodline Necromancer + Flameshadow Conjuring + Phyrexian Altar

Mana needed: {4}{B}

BR identity

Commander legal

The 3 combo pieces

• Bloodline Necromancer
• Flameshadow Conjuring
• Phyrexian Altar

How to execute it

1. Cast Bloodline Necromancer by paying {4}{B}.
2. When Bloodline Necromancer enters the battlefield, it and Flameshadow Conjuring trigger.
3. Resolve the Bloodline Necromancer trigger, returning a Vampire or Wizard creature card from your graveyard to the battlefield.
4. Activate Phyrexian Altar by sacrificing Bloodline Necromancer, adding {R}.
5. Resolve the Flameshadow Conjuring trigger, causing you to pay {R} to create a token copy of Bloodline Necromancer with haste.
6. When the token Bloodline Necromancer enters the battlefield, it triggers, returning the nontoken Bloodline Necromancer from your graveyard to the battlefield.
7. Repeat from step 2.

What the combo produces

• Infinite colored mana
• Infinite creature LTB
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Return some creature cards from your graveyard to the battlefield