Clarity and Arcane surge needs boost

Clarity needs to be boosted heavily, currently the effect is on mana regen is very low, almost not noticeable. Arcane surge also doesn't add much, just enough for the extra cast speed. My mana cost per second is over 770 while regen at 470. Yes I can use mana flasks, but playing chrono and need to cast hexblast nonstop while monster is in time freeze and my mana is low like after 10s, have to wait for refill even when using flask nonstop.

With the amount of mana regen on the tree and on gear available, it's not a concern. There's also other method like recover % on kill jewel or recover on kill stat on gear.

Well recover on kill doesn't work against bosses.

Arcane Surge grant 20% MORE Mana regen. Touch of Arcane with 3 small passives before it grant 80% increased Arcane Surge effect, so now it grant 36% MORE Mana regen. Which is a lot.

But also Arcane Surge grant 10% MORE Cast speed, so while your mana regen goes up, cast speed and manacost/sec goes too. I would drop some cast speed from wand, rings, or tree if you have and invest into damage instead.

I realize that they are trying to make flasks more "important" to use since there are fewer of them. But needing to use a mana flask is just not fun gameplay. It really is as simple as that. I don't really care about mana management unless i am playing a mana-focused build like Mana-Shield or Archmage builds. There should (simple) ways for players who are just playing normal builds to easily outscale their mana costs and i have found it quite difficult as a Ranger to do so because there is very very little mana regen around and only flask boosts in the passive tree on the right/bottom side.

I have had to hold back leveling up my core skills because the mana costs would get too out of hand if i leveled them up.

Clarity's 1% is basically a joke and completely offers no real meaningful mana regen in battle. And considering i'm paying for this buff with my very limited (and valuable) amount of Spirit, it should be more impactful.
Just think about it in terms of math: You are paying 10 spirit for a buff that would take 100 seconds to fill your mana bar up. If you had 2000 mana, its recovering 20 mana per second. Its basically nothing in comparison to what you are spending.

I feel punished now for building attack speed, and that absolutely should NOT be the case.

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Arcane Surge grant 20% MORE Mana regen. Touch of Arcane with 3 small passives before it grant 80% increased Arcane Surge effect, so now it grant 36% MORE Mana regen. Which is a lot

Thanks, I found only 70%(15+15+40) increased effect, which looks great, but cast speed also goes up. I will try to use this node
I checked it with POB and the gap from Mana used and regen goes from 220 to 350 mana with AS.
But it could work if I allocate some nodes to have 100% mana regen, thanks for your post