Poison 2.0

[Karawasa]

Here is an interesting concept that I hope is easy to code. It works similar to Quark (Quantum Beam).

Each time this tower attacks the same target, the AoE of it's attack increases. So the first hit is single target, the second hit has X splash, the third Y splash etc.. Resets as soon as it attacks a different creep. Has a cap.

Edit: It should color the creep green progressively like Flamethrower does red. There should also be a buff effect on the creep (disease cloud).