Doomed Necromancer + Lightning Greaves + Orah, Skyclave Hierophant + Phyrexian Altar

WB identity

Commander legal

The 4 combo pieces

• Doomed Necromancer
• Lightning Greaves
• Orah, Skyclave Hierophant
• Phyrexian Altar

How to execute it

1. Activate Phyrexian Altar by sacrificing Orah, adding {B}.
2. Orah dies, returning Doomed Necromancer to the battlefield.
3. Activate Lightning Greaves' equip ability by paying {0}, attaching it to Dopomed Necromancer.
4. Activate Doomed Necromancer by paying {B} tapping, and sacrificing it, returning Orah to the battlefield.
5. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers