Altar of Dementia + Mikaeus, the Unhallowed + Tatterkite

B identity

Commander legal

The 3 combo pieces

• Altar of Dementia
• Mikaeus, the Unhallowed
• Tatterkite

How to execute it

1. Activate Altar of Dementia by sacrificing Tatterkite.
2. When Tatterkite dies, its undying ability triggers, returning it to the battlefield from your graveyard with zero +1/+1 counters due to its ability.
3. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Tatterkite's power.
4. Repeat.

What the combo produces

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