Cast Infuse with Vitality by paying its mana cost.
Holding priority, cast Naru Meha by paying its mana cost.
When Naru Meha enters, it triggers, copying Infuse with Vitality, with the copy targeting Naru Meha.
Resolve the copy of Infuse with Vitality.
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 harnessing Ashnod's Altar as both a sacrifice outlet and a mana source. When Naru Meha enters the battlefield, she copies Infuse with Vitality to continuously target herself, ensuring she always returns when she dies. Meanwhile, Ashnod's Altar provides the colorless mana needed to keep the cycle going while netting you infinite life and sacrifice triggers from the spell's lifegain effect.