User blog comment:HoukaiEU/Delilah, The Hextech Disciple/@comment-5514182-20130617220651

I like all of it. Crippling Volley sounds balanced, and Defense Screen would be good to escape.

The Ultimate feels a little bit OP, but only because it's global, AOE, and you control it. You could make it a vector, like Rumble's ultimate, or make it not Global (maybe TF ult range).

Battle Companion is basically Lulu's passive, but when empowered, you apply on-hit affects 4 times per attack. Imagine Muramana dealing 24% of your mana pool to the enemy per attack. It also doesn't synergize with the kit. Maybe some other attack modifyer.