Altar of Dementia + Hardened Academic + Obstinate Gargoyle

RWB identity

Commander legal

The 3 combo pieces

• Altar of Dementia
• Hardened Academic
• Obstinate Gargoyle

How to execute it

1. Activate Altar of Dementia by sacrificing Obstinate Gargoyle.
2. When Obstinate Gargoyle 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 Obstinate Gargoyle.
4. Resolve the Altar of Dementia ability.
5. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill