User blog comment:Asfidyll/Arabella, the Hand of Purity/@comment-5588011-20140118221103

This champion may be a little overpowered...

Her E for example. Assuming that the target touches the Onyx once. They get dealt 240 magic damage and a two second stun. This is already better than Taric's stun and Leona's stun and you haven't mentioned a time before the Onyx is activated so I'm assuming you can just drop it and they'll be instantly stunned. Furthermore if you activate it twice you get a non-ulti Orianna ult that also stuns and doesn't put them over the Onyx so you get a 4 second stun. That itself is ovepowered.

Furthermore her Q if struck properly essentially almost does 3/4 of all allied damage. That itself is a gamebreaking mechanic that can be compared to Nunu's ult but on a non-ulti cooldown. This means if you're with a burst champion you do essentially 3/4 of their damage with one spell.

And R might be considered as punishing the enemy team for their actions which isn't really what Riot wants in their game. (They've said this already.)

I think you may want to tweak some of the numbers or elaborate more but other than that I like the concept!