Can be trapped with stone dino gates. Place 3 and then the 4th once it's inside. DO NOT LET IT BURY UNDERGROUND AFTER FEEDING ONCE! Doing so messes up the taming. Stay close to keep aggro. Throw Rock Drake eggs 2 or 3 at a time and continue to do so until it eats them and is tamed.
If you are looking to get a basilisk on crystal isles don’t even try without forcetame or spawn rock drakes due to the drakes not spawning. Thanks for adding acid spitting snakes on the map TAHT CANT BE TAMED