Mad Hamish
First Post
These powers are perfectly fine as they are written and I've been known to take them with both classes in the past. I take them because they ensure a hit. There is nothing more annoying then going up against the big bad and not being able to properly defend. For the ranger it assures Hunter's Quarry! Can you imagine if the rogue had a power like this? Everyone would take it to assure Backstab damage.
Um, no.
They don't ensure a hit. In a standard battle you have about 50% chance to hit. Careful strike gives you a 60% chance to hit at a large cost in damage.
As a fighter you mark whether you hit or not and you get enough bonus to opportunity attacks from wisdom that the +2 to hit isn't a big issue even with heavy blade opportunist.
As a ranger twin shot gives you 2 chances to hit in the round, at 50% to hit on each that means you hit at least once 75% of the time which means you do much more damage.
A rogue might take something similar or might not, OTOH most rogues will have +4 or +5 damage from dex at low levels and normally have other ways of boosting chances to hit significantly so I suspect that they probably average 60% chance to hit if not more. Going from 60 -> 70 % chance to hit means that they will probably do more damage from dex than they get from a boost to hit.