>>538716517
It was in 2-12
Elegg basically explained why the new kraken was different
His core was bigger and for that reason his body couldn't handle the amount of energy so he had to do things to waste the excess energy (like powering up the ship I think)
The tldr is that cores (raptures but its safe to assume nikkes cores too) energy output its related to the body. If you put a core with bigger output compared to what the body can handle it will create problems
She gave an example, like if you have the power to lift ten tons. You could do that but your body will basically explode the moment you try it