Color Identity: B

Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
- Gray Merchant does not have a +1/+1 counter on it.
Steps
- Activate Ashnod's Altar by sacrificing Gray Merchant, adding ({C} magic symbol)
({C} magic symbol)
. - Gray Merchant dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
- Gray Merchant enters the battlefield, causing each opponent to lose at least five life and you to gain that much life.
- Activate Hex Parasite by paying ({1} magic symbol)
and two life, removing the +1/+1 counter from Gray Merchant and giving Hex Parasite +1/+0 until end of turn. - Repeat.
Results
- Infinite colorless mana.
- Infinite death triggers.
- Infinite ETB.
- Infinite lifegain.
- Infinite lifegain triggers.
- Infinite lifeloss.
- Infinite LTB.
- Infinitely powerful creature until end of turn.
- Infinite sacrifice triggers.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).