This gravity-defying lizard has a high HP count, over the top stamina and descent weight, but don't count on its melee attacks: To balance the poisonous bite, the damage itself is as low as that of a raptor and the attack speed is is extremely slow. Their speed is also not what you would expect, but they have just the enough amount to rapidly climb walls.
Best used with high damaging portable firearms, such as Pump-Action Shotguns, Assault Rifles and Fabricated Sniper Rifles.
You can breed them while they are mounted on the wall. I found it's the best way to breed them because they don't move around. But be carefully their egg goes to the other side of the wall so make sure you have access to both sides.