Need ideas about beating that ridiculous shadowbreak

[ᚷᛟᛞᛚᛁᚲᛖ]

As the title says, I need ideas about how to beat that mf in time...

[Dr.Octagonapus]

He's weak to dragon, Dragon->Dark. Yes his HP pool is 200K but I have a really built jetragon. If anything, just capture a full team of jetragons. Even though he's dark type he still has moves that arent dark, but it wouldnt matter because you'd have backup jetragons. If you dont already have a jetragon, after catching at least one, use the one you caught to catch the rest of them. They got 10K+ HP so its worth the effort. (And the sattle) I used 1 jetragon fighting him.
A good strat (For ANY pal if mounting is possible) is to use mount attacks, while they are on cooldown get off and your pal will attack using their moves. Then get back on because your pals moves will also be on cooldown.

[ᚷᛟᛞᛚᛁᚲᛖ]

Well, I got only one and it was very effective... but never thought about 5 of them to fight that mf... interesting... Thanks!