The paviase bleed isn’t the best. But vendetta is worthless on non bleeding enemies, So unless you’re perma partied to a monk or swordie you take what you can get.
and I already mentioned you that you come out of cloaking when you do damage, but ideally you can lay a stockade or punji and get to a safe spot before it damages anything.
@timothyclifford7 I’m not going to lie broom trap is a godsend. But what I said was stockade is one of the better skills you’ll get around that range (so I’m comparing it to other rank three skills) in this builds case Archer C2 Skills, QS C2 skills, ranger C1 skills or Hunter C1 skills. In this case I’d say aside from ranger, none of those classes have anything significantly better than stockade. It sucks that it doesn’t work on flying enemies. but it hits hards, casts fast, doesn’t need mats, and has unlimited hits for the 17 seconds it stays out. When a mob is weak to pierce they pretty much explode on contact and you can just kite them all into it. You have no idea how cathartic hunting chubacapra ears as a sapper was for me 
Punji does have a bit of a cast time but that’s where scouts cloaking comes in. Claymore is actually secretly the worst trap in the sapper repitiore. No where near worth the silver it costs.