Color Identity: C

Initial Card State
- Ulamog in hand.
- All other permanents on the battlefield (Deathrender and Heirloom Blade attached to Ulamog).
Steps
- Activate Ashnod's Altar by sacrificing Ulamog, adding ({C} magic symbol)
({C} magic symbol)
. - When Ulamog dies, it, Heirloom Blade and Deathrender trigger.
- Resolve the Ulamog trigger, shuffling it into your library.
- Resolve the Heirloom Blade trigger, causing you to reveal cards from the top of your library until you reveal a creature that shares a card type with Ulamog and put it into your hand.
- Resolve the Deathrender trigger, putting the creature from your hand onto the battlefield and attaching Deathrender to it.
- Activate Heirloom Blade's equip ability by paying ({1} magic symbol)
, attaching it to the creature. - Repeat.
Notes
- The returned creature may be Ulamog or not. If it isn't, simply ignore the trigger shuffling it into your library, and replace all instances of Ulamog with the returned creature for that iteration.
Results
- Infinite LTB.
- Infinite ETB.
- Infinite sacrifice triggers.
- Infinite death triggers.
- Infinite colorless mana.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).