Old growth is 'chance up to' won't always give max.
Bladeweaving is going to lose its immobilization buff, the regen at 15 points is pretty good when stacked with the rest of them, and I should really increase the damage bonus as your right, its only on the base armor.
Slashing wounds is going to gain a second stackable DOT, that will go hand in hand with the first AND the immobilization buff 6% per skill point invested, so 6 to 90% as a always on buff.
Breathingroom is most definitely a more ranged useful spell.. Blindness won't help melee, and knockback favors get away ranged. but its also the only skill with shield breaking ability.
Inner Focus: the reason why this skill can be considered is when you cast your procs you are SET to a set number. This allows you to go ABOVE those numbers. IE: Thousand Strikes and Sweeping Strikes both have "give 5 counters" BUT their max are BOTH 10... you can't get above 5 with the actual skill unless you use something like Inner Focus or the Reactive weapon.
Rights of the Sun / Moon both have some hefty Damage output, a lot more then you are use to. They are 1 cast for half a minute. of 'damage' and damage soaking, enemies WILL attack them instead of you.
Tree of roots will taunt targets to it, which means you likely don't get hit by 100% of the monsters in the fight. That is really where its strength comes in.
Tree of life is hit or miss for some people, it all depends. The 2k life per second is on par to a second health pot running, add in Bladeweaving and your basically 2.5 to 3x health regen when potting... won't stop you from being 1 shot, but with gift of renewal and this together, your chances of dieing are extremely less.
your absolutely right on lightning strike, you can't generate more uses of it because you are not static shocking and you won't invest in storm warning(whichever one it is) so you will have to cast it over and over. It IS another proc, that does run off of focus and not strength, that does good damage but in this build it is ultimately not as useful of a choice.
I am not sure on vengeance, it depends if you plan to use old growth and giant killer. It is a nature stat battery basically AND does big range aoe's when proc'n. If you don't plan to use old growth this can make up some of your lost nature points, and with old growth it will fuel your giant killer constantly.
Giant Killer: This skill is one I need more feedback on. It does awesome damage, but is it worth the drain. I could consider upping the damage on it if the drain stays as it is now to be honest.
Lightning tree gains a lot with each skill point invested in it, cooldown of the spell, duration, damage... and it draws enemies. Of course 1 point works fine, btw gift of renewal procs on it as well...
rights of the moon bombard gives you the full bombard at 15 skill points, just like the rights of the sun does the full breathing room, maybe I should change him to do closure instead
with thunderstorm I would generally agree with you on 'on kill' issues. But when this thing procs it just keeps going and going.. Its a rather spectacular proc if you really notice what it does.
Storm warning, most definitely its created to be a ranged buff that a combat ranger would really need to sacrifice skills to make it useful.