6 ways to use… azer

Offense

1) The azer are lawful. They fight well together. This gives rise to several basic strategies, such as swarming the same target, and changing position so that the target PC provides cover to the most wounded for ranged attacks.
2) Being grappled by an azer is worth 1d10 damage a turn, from touching it. This is almost half of an attack’s damage. I’d say they still need more reason to grapple. One way is to have one of them knock a PC prone, and another grapple to keep him that way.
3) When fighting, have them run through bushes and anything else flammable. Not only will this create obstacles that will only hurt the other side, but it will also limit visibility. Plus, fire spreads.

Defense

4) When in their base, the best thing they can do is dump a lot of coal onto the fire and fight defensively. If the players don’t take them down fast, the heat will become a deadly weapon. (Have them holding a key, or some such, to give the players motivation.)
5) Outside, they’ll run through bushes and anything else flammable. Try catching a fleeing foe when he’s leaving burning obstacles in his wake.
6) If they can reach a human dwelling, have them jam the door and start setting everything on fire. When the PCs force the door open, the sudden influx of fresh air will cause the fire to flare up in their faces.