And thus, a new champion was born!

Q: Glitterlance that gives AP if you kill a unit with it.
W: An AoE cage that polymorphs anyone who walks into it, also buffing allies that walk into it as well!
E: Targetted AoE after a short delay that shields allies that are hit while damaging enemies that are hit.
R: AP damages scales on your AP and their AP, and makes you larger and gives you more health based on how much HP you have.

...This champion would be the menace of everything...

Athenian_Goddess said:

And thus, a new champion was born!

Q: Glitterlance that gives AP if you kill a unit with it.
W: An AoE cage that polymorphs anyone who walks into it, also buffing allies that walk into it as well!
E: Targetted AoE after a short delay that shields allies that are hit while damaging enemies that are hit.
R: AP damages scales on your AP and their AP, and makes you larger and gives you more health based on how much HP you have.

...This champion would be the menace of everything...

What you said or an Annie yordle skin, where Tibbers is a monstrous Pix. That would work too.