How it works
Prerequisites
- The undying creature does not have a +1/+1 counter on it.
- Undying Creature
Steps
- 1Activate Phyrexian Altar by sacrificing the undying creature, adding .
- 2When the creature dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
- 3Activate Hexavus' second ability by paying and removing the +1/+1 counter from the undying creature, putting a +1/+1 counter on Hexavus.
- 4Repeat.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?