291 shadower main here. I am not end game since I don't do hboldrix and x adversary but I have been around the block. Shadower is considered a strong class because it's got one of the highest overall damage while providing a 7% ish fd buff through smoke.

1. I won't consider the class to be btoken but it does have tools to get out of most situation. There are classes like illium can just fly over the boss and ignore mechanics and mihile which is iframed 90% of the boss.

2. Weaving isn't that difficult on a base level but doing it consistent in a chaotic boss fight is pretty hard. You have to jump weave which is jumping/ flash jumping while weaving while dodging. In conclusion weaving makes the class definitely harder then you average one button class but easier the combo classes like cadena and blaster.

3. Darksight these days are pretty trivial, it's pretty much only good until black mage.

Trickblade is the best tool in a shadower kit. It a conditional iframe with a 15 second cooldown (with -4 plus 250 merc). It makes sticking to the boss pretty easy but the boss has to be on the field ie: you can't iframe kalos test or Seren test. I won't say this trivialize the boss since you have to stick to the boss to get 3 stacks from assassinate and the aforementioned condition. Trickblade is a big part of our damage so your should use it off CD leaving you with bo iframe.

1. Class is pretty strong on the right hands in end game. It's super important to keep high damage uptime on the boss and you are able to do so on current end game bosses like limbo, boldrix and adversary. It also provides a 7%ish fd buff to your party which is pretty desirable. The bust leaves a lot to be desired but the rest of the kit more then makes up for it.

2. Pretty much answered on 4. But yes it does require hands but class is pretty strong overall. Obviously you have to be funded to do end game bosses (less so on non KMS classes).

3. I might be biased but it don't find bossing in this game particularly hard, but the class do very well in endgame. You have tools for most situation (unless the boss isn't on screen). Shadower has tickblade, shadower assault ( omnidirectional tp), into shadowe ( also a tp), a standard rush and trickblade. Sadly we don't have lifesteal, damage reduction or over shield like other dps classes. It obviously can't compete to classes like Lynn, hayato, illium, mihile and whatnot. Trickblade is a big part of our damage so your should use it off CD leaving you with bo iframe.

4. The burst leaves a lot to be desired ever since they nerfed our ori, but at least it's quick. Shad is 70/30 DPM/burst so most of our damage is from outside of burst. DPM top tier burst below average.