Mikaeus, the Unhallowed + Altar of Dementia + Glen Elendra Archmage

Prerequisites

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Steps

1. 1Activate Altar of Dementia by sacrificing Glen Elendra Archmage.
2. 2When Glen Elendra Archmage dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. 3Resolve the Altar of Dementia ability.
4. 4Activate Altar of Dementia by sacrificing Glen Elendra Archmage.
5. 5When Glen Elendra Archmage dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
6. 6Resolve the Altar of Dementia ability.
7. 7Repeat.

Effects

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