Archghoul of Thraben + Mortuary + Rooftop Storm + Phyrexian Altar

Archghoul of Thraben

Mortuary

Rooftop Storm

Phyrexian Altar

How it works

1. Activate Phyrexian Altar by sacrificing Archghoul of Thraben, adding one mana of any color.
2. Mortuary and Archghoul of Thraben trigger.
3. Resolve the Mortuary trigger, putting Archghoul of Thraben on top of your library from your graveyard.
4. Resolve the Archghoul of Thraben trigger, revealing Archghoul of Thraben from the top of your library and putting it into your hand.
5. Cast Archghoul of Thraben by paying 0.
6. Repeat.