do you need evolutions?
If so
r:argomon
attacks:spiral fang,rapid slash
c:Tyromon
attacks:dragon claw,outbreak
u:Dynomon
attacks:hyper claw,dyno explosion
m:Stormdramon (beast and warriormode)
warrir attacks:dragon blade,dragon shield,king of breaker
beast attacks:blazing fire,fusion storm,magna force
If his digimon is in his mega leve, if they biomerge in mega they will become a dragon angel warrior,ArcAngemon.Or if it is better for your story he can use the moonlight crystal to become ArcAngemon.you deside after all its your story.
attacks:wings of hope,gate of destiny,ancient light
Tell me if you need a description of the digimon, and/or the digimon's attacks.