And for the hydro he is one of the easiest battles of the game. I beat him when he had 97k health on heroic. You equip twice flash freeze and put roald on relentless and vera on phalanx. Then just stun him whenever possible and hit him. Actually your problem is that you get him to almost half of his health. After there he will stop casting tick tock and start casting confinement and holy scars.
Hydraulic beat -use regulate, keep spamming that on the baron until he is out of focus, he will use a move that damages him 5k-7k each turn for 3 turns and replenish his focus, or he will use one that just replinishes his forcus, at around 25% health he will have holy scars that increases damage taken, use your high hitting moves on him then. basicaly have him kill himself.
Psychological - use haun on him and try to burn down his health with moves like shock therapy, keep veradux healing and try to survive ticktock as best you can.
