Breath attacks?

I considered making enemies on my server with breath attacks. I don't actually know If this is possible.

Example, If I had an enderdragon enemy that had fire particles around it and I wanted it to breathe fire down at players within 20 blocks, would that work?

I don't want anyone within 20 blocks to combust or anything like that, I want it dodgeable but not deflectable like a fireball. Also, I want it to be like, fireparticles fanning down from the dragon's mouth.

I'm sure there are some...

Breath attacks?