Mikaeus, the Unhallowed + Antler Skulkin + Phyrexian Altar

Prerequisites

• You control a nontoken, non-Human white creature.

Steps

1. 1Activate Phyrexian Altar by sacrificing the nontoken, non-Human white creature, adding .
2. 2When the creature dies, its undying ability triggers, returning it to the battlefield from your graveyard with a +1/+1 counter on it.
3. 3Activate Antler Skulkin by paying , giving the creature persist until end of turn.
4. 4Activate Phyrexian Altar by sacrificing the creature, adding .
5. 5When the creature dies, its persist ability triggers, returning it to the battlefield from your graveyard with a -1/-1 counter on it.
6. 6Repeat.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers