Despair
'I know that I'm going to die if I don't do anything.' The slime thought, looking at his condition.
The Magic Power that the world exerted had given Theo and Loki the necessary Magic Power to kill him.
At the same time, Loki had been utilizing his power to make sure the slime couldn't use any of his abilities. In fact, the World Re-Creation had created a complete illusion world where Seal, Dissolve, Devour, Life, and Time Authority didn't exist.
It seemed that he used all his power in order to maintain this power. Meanwhile, Theo used this opportunity to reinforce that world while trying to erase him with the vortex.
The vortex had already devoured a third of his body. With the addition of Magic Power, he would disappear from this world within two minutes. That was why the slime had to find a solution if he didn't want to be defeated.