Holding priority, cast Naru Meha by paying its mana cost.
When Naru Meha enters, it triggers, copying Undying Malice, with the copy targeting Naru Meha.
Resolve the copy of Undying Malice.
Holding priority, activate Ashnod's Altar by sacrificing Naru Meha.
When Naru Meha dies, it triggers, returning it from your graveyard to the battlefield.
Repeat from step 3.
This clever loop turns Naru Meha, Master Wizard into a self-sustaining engine by utilizing Undying Malice to rescue her from the grave whenever she hits the bin. The entire cycle is fueled by Ashnod's Altar, which happily sacrifices Naru Meha to generate the colorless mana needed to sustain your spells while simultaneously triggering her death-and-return loop indefinitely. Because Naru Meha continually re-enters the battlefield to copy Undying Malice anew, you create a seamless perpetuum mobile that generates infinite sacrifices, death triggers, and colorless mana.