That's Flammable, Doc!

 is an Offense Perk that can be equipped in MultiVersus.

How to Unlock

 * For Tom & Jerry: Reach Mastery Level 4.
 * For other Fighters: via Perk Training.

Solo
For 3 seconds after knocking back an enemy with a Projectile, your team can attack that enemy to ignite them for 1 second.

Stacked
For 3 seconds after knocking back an enemy with a Projectile, your team can attack that enemy to ignite them for 2 seconds.

Trivia

 * This Perk was originally called Fire Projectile.