If you asked Odin, how would he describe Kremeth The Coward in one word, he would have said ' Cold '.
Kremeth the coward for a feared opponent because he had perfect control over his emotions.
Fear, Anger, Pride, Lust, nothing worked on the man as he fought every battle at his own pace, never pushing for an attack even when his side was winning, never waiting a second to retreat if he saw the tides turning.
One could simply not manipulate Kremeth into doing something he did not wish to do which was the reason why he was such a formidable opponent.
Kremeth knew that Rhea must have lightning based skills in her vast arsenal of attack spells, but he knew that she did not have the guts to blast the child's heart with lightning based attacks at the cost of hurting it, but Kremeth had no such reservations.
The second Max moved his hands, Kremeth placed his finger straight over the child's heart and used the move [ Thundershock ]
*Bzzz*