Tame one that’s a good level and then only give levels in:
MELEE FOR DAYS
SPEED FOR DAYS
For best results you sould be on a PVP server that you have gotten some tames and a substantial base and go raid someone's base and have your main “wall wreckers” in the front and the normal line up and then after you can get in RELEASE THE DIMORPHS make sure that they are on aggressive and just kill every thing in site and then leave with your loot
I have a pack of 10+ high level dimorphs that eat brontos and rexes before their corpses can hit the ground, I have them follow me on my argy and when people see the cloud of sky piranhas behind me they give me wide berth as they attack riders directly. If you have a base with a large closed room have these guys follow 1 dino that is passive but set all the dimorphodon on aggressive, no one will want to go into that room.