Thermopod + Naru Meha, Master Wizard + Undying Malice

Thermopod

Naru Meha, Master Wizard

Undying Malice

How it works

1. Cast Undying Malice by paying its mana cost.
2. Holding priority, cast Naru Meha by paying its mana cost.
3. When Naru Meha enters, it triggers, copying Undying Malice, with the copy targeting Naru Meha.
4. Resolve the copy of Undying Malice.
5. Holding priority, activate Thermopod by sacrificing Naru Meha.
6. When Naru Meha dies, it triggers, returning it from your graveyard to the battlefield.
7. Repeat from step 3.

This cunning loop turns Naru Meha, Master Wizard into a self-replicating engine by using her own enter-the-battlefield trigger to copy Undying Malice, targeting herself to ensure she immediately returns upon death. With Undying Malice granting her a persistent resurrection safety net, you can freely sacrifice Naru Meha to Thermopod's activated ability to generate red mana. Because Thermopod's sacrifice outlet acts as a snow creature capable of feeding itself, each iteration restarts the entire cycle to yield infinite red mana, sacrifices, and magecraft triggers.