If your Tank has Puncture, the boss will most probably already have Major Fracture placed on him repeatedly for the whole fight, which is why Rapid Strikes works better.
gimpdrb14_ESO wrote: »I have read that Surprise Attack is better then rapid strikes (I'm talking about pve) but for me at least it seems like rapid strikes is better, when I'm out soloing stuff seems to die faster using rapid strikes. also in 4 man dungeons I do better dps using rapid strikes. so why is surprise attack supposed to be better?
I know skill slots are very limited, but in my opinion these two skills can't really be compared in this way. Surprise attack's real strength lies in its synergy with shadowy disguise, stealth, and ambush.
Against a boss if you have time to spam rapid strikes, maybe the numbers favor rapid strikes, but ambush + surprise attack has good synergy because of the 20% damage boost. Also, the stun and crit from shadowy disguise make surprise the better choice (I don't think the crit or 20% damage boost help rapid strikes much at all). On top of that, surprise gives the extra defense buff and fracture.
On my bar, if I'm in a group, I would consider dropping blood craze over surprise attack if I really felt like I needed a change. I have Killer's Blade, Ambush, Blood Craze, Shadowy Disguise, Surprise attack, and soul harvest as my single target setup. Unless heals were covered elsewhere, I feel they are all pretty much necessary skills because of the way they compliment each other.