I need some help

[Zuvio]

One tip I always used when fighting these quest related supress battles: have enough rage for an Evil Shoal from Sleem. He is the green rage spirit from your rage box. You get him after you feed him some venomous snakes. The evil shoal will kill off the top row two towers and many enemy units. Just fight some random battle and end it with enough rage for your evil shoal. Evil Shoal is the second ability of the Spirit. If you do not have the rage box yet, go do the quests with the crown in front of them, that is the top most quest. You will get the rage box eventually and then can talk to the spirits from your hero menu.