Over the course of the Technical Test and Open Beta, I’ve had tons of success with Thorn. She’s almost all I play, and I’ve played the game a lot more than most people, and a little less than some. I find the best way to take her Helix is going R2 all the way. The only one where I find it doesn’t really matter is the one where you buff curse damage, curse duration for get 100% shield pen when enemies are cursed as a mutator. I have yet to get the lvl 12 mutator, but I’m pretty close.
Thorn really is a strong caster, and her bow attacks do exceptional damage when you hit them. She’s really rewarding to people who can land her basic attacks, but that’s not always easy. When you’re fighting, you should use your spells on cool down, and keep in mind blight is a good get away tool if things go wrong. If you put down a blight, and the enemy gets out of it, try and melee them back into it. Thorn may not have a shield, but she isn’t exactly squishy and can skirmish pretty well with her kiting abilities and spells. Her ultimate has REALLY good burst and can catch enemies off guard. I hardly ever charge an arrow to curse when kiting someone because it’s slow and hardly worth. The only times I charge arrows are if someone is standing still, or if I’m hitting a big body. Thorn is really good at securing kills, and has a sort of high skill cap if you want to play her optimally.
The items I build are a health regen item that increases healing revived whenever I take damage. Then I have a move speed and heal power item. Lastly, I build an attack damage item, with move speed and increased damage when I’m below 25% hp. These items give me really good sustain in fights, and I rarely have to actually port back to base. The final item also makes me more scary to duel, and helps me win close fights, or take enemies by surprise entirely with my higher damage output when they try to dive me.
All in all, I certainly wouldn’t turn down a buff, maybe some kind of change to her curse passive, but I think she’s pretty balanced.