character Looking for opinions on a character I'm working on

[Triskaidekian]

I have decided to make Wraith King from Dota 2 in Don't Starve. If you're not a fan of Dota, don't hate. I'm a casual player myself.

I decided to make a mod for Don't Starve and it hit me to do a character from Dota, so naturally I looked at those starting with a 'W' and decided "1 click king" would be an easy starter to implement since he's mostly passives. I have lifesteal and criticals down.

My plans include wraithfire blast next, I'm thinking of making it an equip-able weapon: ranged, cooldown, damage and stun (slow too?). I'd really like to work out a "mana" mechanic: visuals similar to health/sanity/hunger in the corner with a max value that depletes as you use spells. I was thinking when all your stats are at least half your mana will regen, if anything is under half it will stay where it is (going down if you cast something). Resurrection will have a cool down of 10 days or something like that, and youll have to have the appropriate mana available obviously.

I want this to be as accurate to the original as possible, because of that I am undecided if he'll be balanced or more towards OP. If he's OP I'll try to make it configurable so that he can be played as a fair, balanced character.

Mostly looking for input of suggestions about mana mechanics? Also open to suggestions for Wraith Fire blast.

If this goes well I'd like to see about porting more Dota heroes into the Don't Starve world.

IF YOU WANT TO HELP WITH ART LMK PLS