Mikaeus, the Unhallowed + Deathbringer Thoctar + Phyrexian Altar

Prerequisites

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Steps

1. 1Activate Deathbringer Thoctar by removing a +1/+1 counter from it, dealing 1 damage to any target.
2. 2Repeat step 1 until Deathbringer Thoctar has no +1/+1 counters on it.
3. 3Activate Phyrexian Altar by sacrificing Deathbringer Thoctar, adding one mana of any color.
4. 4Deathbringer Thoctar dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
5. 5Repeat.

Effects

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