How it works
Prerequisites
- Hangarback Walker has at least one +1/+1 counter on it.
Steps
- 1Sacrifice Hangarback Walker to Ashnod's Altar, adding .
- 2Hangarback Walker and Colfenor trigger.
- 3Resolve the Hangarback Walker trigger, creating a Thopter token.
- 4Resolve the Colfenor trigger with no targets.
- 5Sacrifice the Thopter token to Ashnod's Altar, adding .
- 6Colfenor triggers, returning Hangarback Walker from your graveyard to your hand.
- 7Cast Hangarback Walker for X=1.
- 8Repeat.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?