>>44029128Aegislash
Dracovish (Sword version) / Arctozolt (Shield version) (Opposite to the fossil combination you find)
Haxorus
Rotom Cut / Rotom Heat / Rotom Wash (Secondary type is same as your starter choice)
Rillaboom / Cinderace / Intelleon (Strong against your starter choice)
Dragapult <- Ace (Hypothetical Gmax's Dragon-type Gmax Move ignores negative modifiers on the user such as Attack drops and Burn, and pierces through modifiers such as Defense boosts, Misty Terrain, Friend Guard, etc.)
How's this? I made sure he didn't use Pokemon already used by other prominent characters and wanted to add more variables to make his fight more dynamic depending on player choices.