Basking Rootwalla + Blazing Rootwalla + Tortured Existence + Phyrexian Altar

Basking Rootwalla

Blazing Rootwalla

Tortured Existence

Phyrexian Altar

How it works

1. Activate Tortured Existence by paying and discarding Basking Rootwalla into exile, targeting Blazing Rootwalla.
2. Basking Rootwalla's madness ability triggers, causing you to pay 0 to cast it from exile.
3. Resolve the Tortured Existence ability, returning Blazing Rootwalla from your graveyard to your hand.
4. Activate Phyrexian Altar by sacrificing Basking Rootwalla, adding .
5. Activate Tortured Existence by paying and discarding Blazing Rootwalla into exile, targeting Basking Rootwalla.
6. Blazing Rootwalla's madness ability triggers, causing you to pay 0 to cast it from exile.
7. Resolve the Tortured Existence ability, returning Basking Rootwalla from your graveyard to your hand.
8. Activate Phyrexian Altar by sacrificing Blazing Rootwalla, adding .
9. Repeat.