I had to think hard, very very hard, on this question. The reason I am answering this now instead of before is because I wanted to make sure I had a well determined list on the troll rank before I tackle something like this. Because Damn, this is a super hard question.

What would drop Karkat, Gamzee, and Terezi down to be worst than Equius?

This can either be something another troll does to go UP in ranking, or some plot thing that the three would do to screw themselves up.

For this, I’m going to focus on the latter.

Terezi:   she has a very strong need for justice. Wanting to “punish” those who were wrong. We already saw that she was chill with murdering other trolls as long as justice is done. She can abuse that. If her sense of justice overrides her thinking and she purposely targets her other friends, regardless of how that might effect the rest of the game. See, what makes this worst is that she isn’t like Aradia, where she will instinctively lash out in a fit of rage. Terezi is a lot more calculating than that. When she attacks it will be cold and detached, and that is what I would fear.

Gamzee:    I have no idea why he is so high up on the list. We have barely seen him in comparison to the other trolls. We don’t even know what his medium looks like, but here we are. I like him because he is calm, happy, always open to everyone and everything. It is probably because he is high all the time, but still. So it would be the opposite of that. If he is no longer open. If he becomes paranoid of everything that he sees. Or worst, if he loses all his whimsy and just doesn’t care. If he becomes totally apathetic to everything around him, I think that would take him down.

Karkat:     He is an angry boy, but we have seen why. He does have an inferiority complex, and lashes out in fear of anyone finding his blood. I am so happy that he is able to bond with Slick, to find someone for him.

I hated him first for attacking the Kids. I liked him now for him trying to change his attitude to the kids, and how he is able to continue to struggle with himself on how “wrong” he is, still fighting everyone’s perception.

For Karkat to be low…he can’t have a spark. He would have to shut down completely. No rage, no feelings, nothing. He accepts his lot in life, and no longer fights the system.

Or it can go the other way. He lets his inferiority complex consumes him like Monoma from My Hero Academia, where he feels the need to prove himself constantly, or feels to destroy everyone around him just to feel something.

This is the hardest question I have to answer because I can’t just saw “well he has to start world war 3″ or something because I like actual murderers more than the pacifists. This is me solely trying to judge based on personality and actions.