First build looking for tips

I reached mapping with my first character following a build guide, and now have the craving to make my own.

My goal was to make a character with high movement speed and evasion, while also having enough dps to solo delve. I also focused life leach and high life regen because I thought that might help with darkness runs. Two handed axe was the weapon of choice, with no real skills in mind to start. I did however want to avoid damage over time and elemental effects, focusing on raw damage output.

It should also be said I'm playing SSF so upgrades are limited.

After reaching level 48 and browsing the list of skills I think I've decided on Heavy Strike and Vaal Ground Slam.

Skill Chains:

Heavy Strike
Not too sure what support will add the most damage to this. I had considered using Faster Attacks Support and Melee Physical Damage Support instead but these seemed better.


Ground Slam
I am using the quest jewel for 50% increased angle for ground slam.


Utility
I was planning on using 2 50% Auras reserved with an enlighten support gem and a mana reservation node on the tree, along with a possible item stat as well. Will this leave me with enough mana to use my skills? The only time I seem short on mana is spamming heavy strike on a single target. Should I maybe go with a buff like Blood Rage instead of the 2nd 50%?



Reflect
Onslaught and Blind seem to trigger with Vengeance. Could anyone confirm this? Seemed like a good way to increase survive-ability.


Curses
Cast on damage taken seems like the way to go for curses. (Is the play to keep this gem at level 1 to keep the threshold low? Is it possible to lock a level or do I just have to ignore the notification on my screen?)
I'd really like to use oils for an extra curse. I don't think that's asking too much since I don't have many "necessary" stats on equipment.