Hey!
I can't really compare with other classes, since I only have experience with Night elfs.
NE has shadowmeld, which can be used in combination with the glyphed camo. What you can do is kill someone with aimed + chimera (breaking camo), and then quickly shadowmeld again, successfully hiding from the enemy team. If you have the 1 min cooldown on camo timed good you can trigger it again from shadowmeld, and also start moving stealthed again. If Im not wrong I actually do just this in my first arena video.
If you don't have the camo ready, shadowmeld can still give you a few more seconds to gather some focus / ready chimera, for your next kill.