Tayam, Luminous Enigma, Cathodion, Carrion Feeder, and Mikaeus, the Unhallowed

Prerequisites

• Tayam, Luminous Enigma on the battlefield
• Cathodion on the battlefield
• Carrion Feeder on the battlefield
• Mikaeus, the Unhallowed on the battlefield
• Cathodion does not have a +1/+1 counter on it

Steps

1. Activate Carrion Feeder by sacrificing Cathodion
2. Cathodion dies, triggering itself and its undying ability
3. Resolve the first Cathodion trigger, adding
4. Resolve the second Cathodion trigger, returning it to the battlefield with a +1/+1 counter and a vigilance counter
5. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it
6. Activate Tayam by paying , removing a counter from Carrion Feeder and removing both counters from Cathodion, causing you to mill three cards and allowing you to return a permanent card with mana value three or less from your graveyard to the battlefield
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite self-mill
• Put all permanents with mana value three or less from your library and graveyard onto the battlefield