Scuzzback Marauders + Yahenni, Undying Partisan + Hardened Academic

Scuzzback Marauders

Yahenni, Undying Partisan

Hardened Academic

How it works

1. Activate Yahenni by sacrificing Scuzzback Marauders.
2. When Scuzzback Marauders dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Hardened Academic triggers, putting a +1/+1 counter on Scuzzback Marauders.
4. Resolve the Yahenni ability.
5. Repeat.