Mikaeus, the Unhallowed + Yahenni, Undying Partisan + Brambleback Brute

Mikaeus, the Unhallowed

Yahenni, Undying Partisan

Brambleback Brute

How it works

1. Activate Yahenni by sacrificing Brambleback Brute.
2. When Brambleback Brute dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect.
3. Resolve the Yahenni ability
4. Repeat.