Bolas's Citadel + Mortuary + Phyrexian Walker + Viscera Seer

B identity

Commander legal

The 4 combo pieces

• Bolas's Citadel
• Mortuary
• Phyrexian Walker
• Viscera Seer

How to execute it

1. Activate Viscera Seer by sacrificing Phyrexian Walker
2. When Phyrexian Walker dies, Mortuary triggers, putting Phyrexian Walker from your graveyard onto the top of your library.
3. Resolve the Viscera Seer ability.
4. Cast Phyrexian Walker from the top of your library by paying 0 life.
5. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Infinite scry 1
• Infinite storm count