This ingenious loop relies on Rograkh, Son of Rohgahh costing zero mana to cast, allowing you to deploy your commander over and over again for free. Each time you sacrifice Rograkh to Goblin Bombardment, Yomiji, Who Bars the Way steps in with its legendary-retrieval trigger to bounce the little Kobold straight back to your hand instead of letting it rest in the graveyard. Goblin Bombardment then converts that endless cycle of sacrifice into infinite damage, letting you systematically clear away opposing threats or close out the game entirely.