Muldrotha, the Gravetide + Phyrexian Altar + Kaya's Ghostform

Muldrotha, the Gravetide

Phyrexian Altar

Kaya's Ghostform

How it works

1. Activate Phyrexian Altar by sacrificing Muldrotha, adding .
2. When Muldrotha dies, Kaya's Ghostform triggers, returning Muldrotha from your graveyard to the battlefield.
3. Cast Kaya's Ghostform from your graveyard by paying , attaching it to Muldrotha.
4. Repeat.

This recursive loop centers around Muldrotha, the Gravetide, whose powerful static ability allows you to cast permanent spells directly from your graveyard once per turn for each type—meaning you can replay auras from the bin. By using Phyrexian Altar to sacrifice Muldrotha, you trigger Kaya's Ghostform, whose enchantment ability instantly rescues Muldrotha from the graveyard and returns her right back to the battlefield. Because Muldrotha is back on the battlefield, the restriction resets, allowing you to cast Kaya's Ghostform right back out of your graveyard using the black mana generated by the Altar to restart the entire cycle.