These guys are a must-have in Aberration; they are always awake (at least in the bioluminescent area), and thus always have their night buff. Of course, this also means you must always be wary of wild ones while in their territory.
Remember that it has to go to sleep from time to time so don’t go into a raid or massive fight with it until you check the time when it needs to sleep you can let it sleep whenever you want so you don’t have to always wait for the timer
The devs should add a command for singleplayers that the Megalosaurus can grab creatures on it‘s own without attacking them so the player can knock the dinosaur out easily in front of him (through a command like turret mode on the chalicotherium)
A level 1 Mega can rip a level 1 Rex to shreds during the night with over 60% of its health remaining, so I don’t know what you people are talking about when you say that it’s power is EQUAL to a Rex. It is clearly superior.
When out at night, be sure to take this with a raft or quetzal with platform, so when it is tired, you can get it back to base without it being attacked. Just a tip to ensure that your prized Megalosaurus doesn't die whilst you are out.