How it works
Prerequisites
- You've had [X] lands enter this turn.
- Persist Creature
Steps
- 1Activate Phyrexian Altar by sacrificing the persist creature.
- 2When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Bioengineered Future.
- 3Repeat.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?