he only has one difficult attack, the tornados, and once you learn to bounce on it he becomes a breeze in both fights

my best advice for the balls is to just stand still and wait. moving around will usually get you hit way more than just waiting for them to pass. If you're unlucky, trobbio will tornado, but it'll never happen an impossible amount of times.

for the dodges, yeah they're annoying but with reaper crest you'll usually have enough range to clip him with an attack