Battle Medic AA (Semi-Carry, Semi-Support)

I can see why would wouldnt want the perserverance but I've tried it and it does help and I too would prefer it to ferrying pots, mainly for the option of a partially complete linkens later if game lasts that long

Perseverance increases the void stone to 125% mana regen and increases damage by 10. I used to just get the Salves but I found myself buying 10 a game and then only using them when nobody was around (due to them losing use if your hit), while with a Perseverance I could go from waiting to gain health for 10 seconds to jungling for 30 seconds and regaining my health while gaining exp, gold, ect. It's really just a personal preference of mine, but yeah salves work too.

Random Perseverance is a crutch, learn to ferry Healing Salves from courier on carries without Lifesteal.