Took a Level in Jerkass/Playing With

Basic Trope: Character becomes more of a Jerkass over time.

Straight: Squishy Wizard Leon starts out as an Aloof Ally with a hint of Deadpan Snarker, but he still clearly respects his Nakama. However, over time he degrades into an Insufferable Genius Jerkass who openly takes delight in the misery of others.
Exaggerated: Leon starts out as a Shrinking Violet with a touch of cynicism, a sorcerer wearing Jade-Colored Glasses. By the end of the series, he has devolved into a snarky asshole who wouldn't give a damn if his companions were horribly slaughtered and the whole world went to hell.
Justified: Leon is the team's Butt Monkey and a Cosmic Plaything.
Inverted: Took a Level In Kindness.
Subverted: Leon suddenly acts like a total Jerkass, but in reality it's a defense mechanism because he's stressed out.
Double Subverted: ...But then flips around and becomes a smarmy asswipe.
Parodied: Everyone refers to Leon being unusually nice while he's beating orphan beggars in the street for daring to ask for some food. They keep on acting like he's being nice even when he sets Ben on fire for no reason.
Deconstructed: Leon has been through things worse than death while fighting things that should not exist. This transition is showing how he is falling apart and may end up switching sides.
Reconstructed: ???
Zig Zagged: ???
Averted: Leon's characterization remains about the same. Any time he goes too far such as making a crack about Chase's village he apologizes but soon returns to his usual level of aloofness and sarcasm.
Enforced: ???
Lampshaded: One of the main characters notes that Leon wasn't always this much of a jerk.
Invoked: ???
Defied: ???
Discussed: ???
Conversed: ???
Played For Laughs: Leon ends up deaged into a teenager. He becomes insufferable and rude in this time. Although to be fair his companions did send him back to high school for no reason.
Played For Drama: ???

Back to Took a Level in Jerkass, you idiot. Yes, I was a lot nicer three seasons ago. Deal with it.