Bloodlust

From Rumblepedia

The Khazan Bloodlust, originally coined as Bloodthirst, is the assumption that a character in the area will fight without any sort of Writer's Fiat (or PIS), and without regard to their usual moral codes. The classic explanation of Bloodlust is that if Superman is capable of punching his opponent's head off, he will, even though Superman would normally be adverse to such brutality. The Khazan Bloodlust is also responsible for the coining of the term Speedblitz.

However there are sometimes times where this gets misinterpreted, while the traditional definition of bloodlust almost parallels 'insanity', The Rumbles definition simply means that the opponent is trying their best to kill the other person.

This is not a removal of CIS, however. Opponents will retain their mind, personality, and mental shortcomings.