Bolas's Citadel + Mortuary + Phyrexian Walker + Sarcatog

BR identity

Commander legal

The 4 combo pieces

• Bolas's Citadel
• Mortuary
• Phyrexian Walker
• Sarcatog

How to execute it

1. Activate Sarcatog 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 Sarcatog 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 storm count
• Infinitely large creature until end of turn