Byron

Byron deals with potent medicaments, but never call him a snake oil salesman!

Attack: Careful Dose

Shoots a long range dart that can hit both opponents and friendlies. Opponents will take damage over time and friendlies will heal over time.

Super: Full Treatment

Throws a vial that heals friendlies and damages opponents.

Malaise: Byron’s Super will also cause opponents to receive 50% less healing from any source for 9 seconds.

Injection: Every 3.5 seconds the next basic attack will pierce through targets.

Shot in the Arm: Byron uses one of his shots to heal himself 800 per second for 3 seconds.

Byron is a healing Brawler, but with more damage potential than Poco. Not just that, his attack also poisons so he can also fulfill the role of a Crow too (harassment and denial).
To play Byron most effectively, pay attention to what your team needs most. Are they struggling against a high damage team? Prioritise healing. Are they struggling to finish off enemies? Play more aggressively and land your Super as a finishing blow.
Due to Byron’s versatility, he shines mostly in team based modes, while weaker (or at least not in full potential) in solo game modes.