Help with Chronomon DM

[Ampharos]

I'm stuck on beating him, and he's a major pain in the ass to do so. I have all Megas with decent equipment, but they're levles 49-58, and he's level 60. What should I do?

Oh, and this is my team.
HiAndromon
Plesiomon
Creepymon
Rosemon
BlackWarGreymon
Seraphimon

[demoneater]

i think u should get rid of the mega that u converted and start training digimon from scratch(or degenerate and go witha diff line of evolution)

[DoruGoramon]

I would go with wat demoneater said. It really helps if you do it right.

[Ampharos]

I only scanned HiAndromon and Creepymon, but I'll try to get a MaloMyotismon or some other Dark Digimon.