How it works
Prerequisites
- "Human" chosen with Metallic Mimic.
- You control another creature that has at least one +1/+1 counter on it.
Steps
- 1Activate another creature you control that has a +1/+1 counter on it by exiling it, creating a 1/1 Human creature token that enters the battlefield with a +1/+1 counter on it due to Metallic Mimic.
- 2Repeat using the Human token instead.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?