Here is the truth about the Spino no one is talking about for some reason. First, the bad: It is VERY slow on land. Don’t bother wasting points on movement. It will never have as much health as a Rex. While it is amphibious, it must come up for air occasionally. Keep an eye on his oxygen marker.
The good: It only has one speed while swimming.., FAST. Don’t bother double clicking to swim faster. He always sprints in water. His oxygen lasts an eternity underwater. Increase points into his oxygen an you will make his already impressive swimming speed even faster and allow him to stay underwater for days. His stamina drain is very slow. His bite is VERY fast, makes for some high DPS. They can swim BACKWARDS, which makes underwater fights SO much easier.
Bottom line, don’t try to make it a land fighter, that role is well taken by the Rex. I put points into melee, oxygen and Health and make it an underwater absolute beast.
To be strictly honest the spinosaur is one of the best mounts in game if you are even wble to obtain one be sure to make it a high level one they are very squishy at first so go around killing small dinos before attacking big prey
TLC patch coming in March 2018 to add the ability to swap between 2 legged mode (faster attacks and ability to attack with claws) and 4 legged mode (Faster movement), as well as increased turning radius, movement speed, damage, and health regen while in water and for a short time after leaving it. Like so people can see!
When in water, the spino can move without using stamina, this means that in a fight, if you run into a deep water source, you don't need to worry about stamina if you need to retreat. Has an oxygen bar so you can't dive forever sadly, very fast in water though.