Cinderhaze Wretch + Endling + Mairsil, the Pretender + Phyrexian Altar

Mana needed: {B}

UBR identity

Commander legal

The 4 combo pieces

What must be in place

Cinderhaze Wretch and Endling each have a cage counter on them.
Phyrexian Altar on the battlefield or in exile with a cage counter on it.

How to execute it

  1. Activate Mairsil using Endling's third ability by paying {B}, gaining Mairsil undying.
  2. Activate Mairsil using Phyrexian Altar's ability by sacrificing Mairsil, adding {B}.
  3. Mairsil's undying ability triggers, returning it to the battlefield.
  4. Activate Mairsil using Cinderhaze Wretch's ability, putting -1/-1 on itself.
  5. Repeat.

What the combo produces