Mikaeus, the Unhallowed + Phyrexian Altar + Glen Elendra Archmage

Prerequisites

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Steps

1. 1Activate Phyrexian Altar 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. 3Activate Phyrexian Altar by sacrificing Glen Elendra Archmage.
4. 4When Glen Elendra Archmage dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
5. 5Repeat.

Effects

• Infinite colored mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers