I guess that you could try and give the character using the BoF an aura, which gives all surrounding enemies the Drunken Haze buff. I really have no idea if that'll work.
Edit: Apparently doesn't work. I'm not skilled in JASS or the sophisticated inner workings of Warcraft III so I was apparently way off.
It could probally be done, i havent checked what the breath of fire is like, but as far as i know, they use it in single player for a hero, if it combines 2 abilities, its probally hardcoded