Add a short cooldown to the traitor invisability cloaker.

[Dauntasa]

sleepypen is balanced by the delayed action

so it's balanced because the person has enough time to poke you and then run away before you receive any indication that you've been lethally poisoned and are going to die?

sounds like a pro and not a con, to me. Plus there's nothing stopping them from filling it with something that immediately fucks you up like, say, ClF3(which you can make in about 5 seconds in the bar).

As for the others, yeah, obviously the cloak is better but only in that if you're extremely paranoid about it you can recognize that you're being attacked before you're lethally wounded. So while the cloak is "you can't recognize that you're being attacked until you've been hit once", the others are "you can't recognize that you're being attacked until you've been hit unless you're paying close attention to the inhand sprites of everyone you meet". Which, although I may not be the norm here, I rarely find myself doing. The cloak is the strongest but they all are designed to do basically the same thing, allow you to win a fight with someone before they even realize there is a fight. And they all do that to varying degrees of success(and I will argue that the pen is basically just as good as the post-nerf cloak if not better because with the right poison you can kill two people right next to each other in quick succession without either of them realizing what is happening where with the cloak you only get one before your cloak shorts out).