Mikaeus, the Unhallowed + Phyrexian Altar + Lesser Masticore

Prerequisites

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Steps

1. 1Activate Phyrexian Altar by sacrificing Lesser Masticore.
2. 2When Lesser Masticore 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 Lesser Masticore.
4. 4When Lesser Masticore 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