Going berserk would not be a big of a deal on normal circumstances. Zeke had encountered countess warriors and monsters who had this state including the late King Gallio. Wielding not a normal version of this skill but something which is referred to as the [Ultimate Berserker].
Yet, there was a troubled expression on Zeke's face because, he knew that among all his subordinates, it was only Morpheus who has never actually shown his true potentials. It was true that he was strong but, the child was only able to grow based on the enemies he fought. And since there was nothing on Mythos but the normal monsters before, there was really no way for his metamorphosis to truly commence.
There was no second thought on Zeke's head as he teleported to Heron's location. The area was surrounded by the Dragon Morpher's [Cloud of Dreams]. And from the pained expression on Heron's face, Zeke instantly knew that she was doing her best to hold back Morpheus.
