So, you're seriously advocating just a very slight hp nerf and a very slight homing nerf? =/
You do realize she's GOD status right now, right? It's not like she's just a little OP, she's literally the best at just about everything. She has the highest sustained dps in the game, the longest effective range, and by far the best crowd control in the game and a nasty escape. She has abilities that make her both a LOT faster and makes her homing even better.
No sir, no half measures here. She needs spayed. While I don't want her gutted to unplayable status, right now, as is, she needs more than just a slight homing tweak and a slight hp tweak.
You say she's a mid/long range class, I say fine, here is what should happen then:
Near max visible range her thistle does 8 damage a hit, at 3/4th of that range, it does 6, at half, it does 4, at 1/4th and closer it does 2 dmg per thistle.
Her rate of fire is decreased by 20% (20% slower firing)
Her hps are reduced to 75
When in Arcane Enigma she is made more visible
Frost Rose is gutted.