What I always try to do is get him into that corner trap. Alot of times, when I get a tager cursed, he starts playing very defensive. Spam bugs, throw up a bell bug, get another cloud out, and spam some more bugs. A few times I've gotten tager players to just keep backing up until they hit the corner.
Tager eats arakune's corner trap all day long. He's way too big and slow to do anything about it. I can remember 2 different tagers I've played that I beat both rounds with the corner trap. Im sure they were cursing me up and down. hahaha