B2 Jack was in jail.  Gamzee sent him Lil Cal and a knife.  Jack looked into Cal’s eyes which caused him to stab out his own eyes and replace them with Cal’s.

Every time any troll uses their psychic powers their symbol appears on their forehead, the tiara is unrelated.

He didn’t send it over with chuckevoodoo, he created it.  The Cal in the felt outfit is still with him when he’s in the Alpha kids’ session

The Condesce put them there so they’d be available if she ever succeeded in bring the troll race back into existence.

Doc Scratch is Lil Cal’s ectobiological son. He also inherited a piece of Caliborn’s soul from Cal which is why Lord English was able to appear through him after he died.

Lord English did give her a power boost but he wasn’t involved in her gaining additional troll abilities.

Here’s your hat with convenient flaps so your horns will fit.

If any of you can provide a source, I’ll believe you

Specify when.

Considering how many centuries you’ve lived your Imperious Condescension, compared to the lifespan of an average troll or human, yes, you’re old,