Holding priority, cast Naru Meha by paying its mana cost.
When Naru Meha enters, it triggers, copying Graceful Reprieve, with the copy targeting Naru Meha.
Resolve the copy of Graceful Reprieve.
Holding priority, activate Goblin Bombardment by sacrificing Naru Meha.
When Naru Meha dies, Graceful Reprieve triggers, returning Naru Meha from your graveyard to the battlefield.
Repeat from step 3.
Resolve all Goblin Bombardment abilities from step 5.
This clever loop hinges on the recursion provided by Graceful Reprieve, which ensures your key piece can never truly stay in the grave. By casting Naru Meha, Master Wizard at the right moment, its enters-the-battlefield ability steps in to perpetually copy that very same Graceful Reprieve, targeting Naru Meha itself to ready the next cycle. Goblin Bombardment then acts as the ultimate payoff, letting you sacrifice Naru Meha to instantly convert this endless cycle of death and rebirth into infinite damage directed at any target.