FIERY JUGGERNAUT CHALLENGE Rumble Sunbreaker Fabian Strategy and Immobius Max Strength, Max Agility Stoke the Forge, Fleetfire, Cauterize Insurmountable Skullfort, War Numen's Boots Use weapons to soften enemies health, then melee kill as often as possible. The bonus Agility from the boots and Fleetfire stack, meaning each kill makes you move faster. Skullfort ensures you always have melee charges, and can even double melee if necessary. Cauterize procs regen after every melee kill.