How it works
Prerequisites
- Triskelavus has at least one +1/+1 counter on it.
Steps
- 1Activate Triskelavus' first ability by paying and removing a +1/+1 counter from it, creating a 1/1 Triskelavite creature token.
- 2Rosie triggers, putting a +1/+1 counter on Triskelavus.
- 3Activate Phyrexian Altar by sacrificing the Triskelavite, adding .
- 4Repeat.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?