How it works
Prerequisites
- Necrosynthesis attached to Herd Baloth.
- You control another creature to sacrifice.
Steps
- 1Activate Ashnod's Altar by sacrificing a creature, adding .
- 2Necrosynthesis triggers, putting a +1/+1 counter on Herd Baloth.
- 3Herd Baloth triggers, creating a 4/4 Beast creature token.
- 4Activate Phyrexian Altar by sacrificing the Beast token, adding .
- 5Repeat from step 2.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?