Altar of Dementia + Glissa, the Traitor + Grave Pact + Ornithopter

BG identity

Commander legal

The 4 combo pieces

• Altar of Dementia
• Glissa, the Traitor
• Grave Pact
• Ornithopter

How to execute it

1. Sacrifice Ornithopter to Altar of Dementia.
2. Grave Pact triggers, causing each opponent to sacrifice a creature.
3. Glissa triggers at least once, allowing you to return Ornithopter to your hand.
4. Resolve Altar of Dementia's ability, causing target player to mill cards equal to the sacrificed creature's power.
5. Cast Ornithopter by paying {0}.
6. Repeat until your opponents no longer control any creatures.

What the combo produces

• Lock
• Near-infinite creature sacrifice triggers
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite mill
• Near-infinite self-mill
• Near-infinite storm count
• Opponents sacrifice all their creatures each turn