Bartolomé del Presidio + Hardened Academic + Kithkin Spellduster

RWB identity

Commander legal

The 3 combo pieces

• Bartolomé del Presidio
• Hardened Academic
• Kithkin Spellduster

How to execute it

1. Activate Bartolomé del Presidio by sacrificing Kithkin Spellduster.
2. When Kithkin Spellduster 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 Kithkin Spellduster.
4. Resolve the Bartolomé del Presidio ability.
5. Repeat.

What the combo produces

• Infinite +1/+1 counters on a creature
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers