Wizard101: Solo Metallossus (Portal of Peril Version Tier 3)

If you were unaware, the Portal of Peril bosses are different from the actual gauntlet. This includes new cheats. The gauntlet version has no cheats, but this one has a pretty unique battle. Basically, you have to get 6 or more dispels on him. However, he spams with dispels, Mighty Judgement, and Myth Imp. The only way to (feasibly) do so is to hit him. Then you have 1 round to hit him with the 300% pierce.
This battle is worth an extra 5 Coins to your run. So if you're with a team, why not do it!?
There's another secret boss in here too that I will be looking to complete too.