Hardened Academic + Woodfall Primus + Yahenni, Undying Partisan

BRGW identity

Commander legal

The 3 combo pieces

• Hardened Academic
• Woodfall Primus
• Yahenni, Undying Partisan

How to execute it

1. Activate Yahenni by sacrificing Woodfall Primus.
2. When Woodfall Primus dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Hardened Academic and Woodfall Primus trigger.
4. Resolve the Hardened Academic trigger, putting a +1/+1 counter on Woodfall Primus.
5. Resolve the Woodfall Primus trigger, destroying target noncreature permanent.
6. Resolve the Yahenni ability
7. Repeat.

What the combo produces

• Destroy any number of noncreature permanents
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Lock