This is actually silly.

I just had a Diana go Rabadon's first item. Didn't get fed off of me or my mid until after she got rabadon's. She got 1 kill on bot lane.

Completed Rabadon's and was one shotting everyone.

The problem with this is that her passive gives her mana back, and her Q is on a mildly short CD.

Every 3rd Auto restores 15% AP in mana. Her Q mana cost is 55 at all ranks.

The full build was Double Doran's ring into Rabadon's.

Now let me explain why this is actually cancerous.

Her Third Auto has a 80% AP scaling attached to it.

Her Q has a 70% ap scaling attached to it on top of its damage.

At rank 6 with just a rabadon's.

Her Q CD is 8 seconds.

R CD is 25 seconds.

So if we account for just Q R R Auto (when she flashes/ you don't have vision of her) Auto. (level 6) Q W E Q Q R

It comes out to.

130+70% + 2(100 +60%) + 50+ 80% = 130+117.6 + 2(100+100.8)+50+134.4= 833.6 lets add in electrocute.

833.6 + 74.6 + 41 = 949.2.

Just accounting for Rabadon's and no AP runes, Doran's.

Now this damage would make sense. If her CD's made sense for them.

This is some that damage output is on her ulti cd. Which is 25 seconds.

That means, that if you are forced out of lane because she Q R R Auto'd you. By the time you come back to lane, she will be able to do it again.

LB is the only other champion that can actually do that. And everyone hates playing against LB. But the difference between LB and Diana is the fact that LB sacrifices CS to do that. Diana can throw her Q through the minion wave and farm with her 3 AoE abilities while trying to kill you.

The thing that makes her even more cancerous, is that she has a shield. The same thing that they removed from Ryze because it makes him too durable. So she can tank a bit of damage in ranged match ups and do her combo.