Infernus

A-tier

Arsonist · Explosive · Burn Rubber

How to play

Early game · first 8 minutes
Apply Afterburn during trades, place Napalm where the enemy or wave has to stand, and use Flame Dash to move through the wave or leave a bad exchange. You benefit from extended trades, but do not stay in one just because the burn is already ticking.
Mid game
Use Concussive Combustion after enemies are already committed and grouped. Keep Afterburn active through the fight and use Flame Dash as movement once the engagement is defined, not as the automatic first button.
Late game
Put Napalm on the ground the enemy must occupy, keep Afterburn rolling on reachable targets, and use Concussive Combustion when the group cannot simply disengage. Once the fight is won, take the available objective instead of extending the chase.