Kaya's Ghostform + Phyrexian Altar + Skullwinder

Kaya's Ghostform

Phyrexian Altar

Skullwinder

How it works

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

This clever loop turns the cycle of life and death into a perpetual mana engine by locking Skullwinder and Phyrexian Altar into a self-sustaining cycle. Whenever you sacrifice Skullwinder to the Altar for mana, Kaya's Ghostform immediately whisks it right back to the battlefield from the graveyard. That recurring entry triggers Skullwinder's ability to pull Kaya's Ghostform back to your hand, allowing you to simply recast the enchantment and repeat the process indefinitely.