This explosive sequence relies on Avatar Roku, Firebender to turn any attack into a massive windfall of six red mana, which is safely preserved through your phases thanks to the continuous mana-retention effect granted by The Last Agni Kai. Once you have fueled your pool with this fiery bounty, you pump it directly into Aggravated Assault to untap your board and generate endless additional combat phases. Because Avatar Roku triggers anew on every single attack, you can repeat this cycle infinitely to keep swinging with your entire team while stockpiling boundless red mana.