I was fighting these in gustav tunnel and we set up the skillchain Piercing Arrow > Smash Axe for indurition. An Ice skillchain. but... it did like zero damage even with blizzard MB. Then I accidentally set off the Flaming Arrow > Raging Axe skillchain we had for the gobs and we did like 108 from the skillchain and like 300 on the fire II. Ever since then we've been doing fusion for much more damage. So um... yeah. Fusion was just doing alot more than Indurition the ice skillchain.