You know, the only troll champion in the game?
The poor troll hasn't even gotten a single slight of a lore update. he isn't even referenced anywhere at all anymore.
Is he still Lissandra's asset or does he have his own faction? What's his background? What is his place in Freljord?
Before you say that "Trundle is just a minor character in the Freljord scheme", No, he isn't. It just looks that way since he hasn't gotten a lore update ever since his rework.