New Dark Spell: Gooage Spell

Attachment 169992
Gooage Spell
This spell may come in handy. The Gooage Spell is like the combination of the Freeze Spell and the Poison Spell, except with goo. This will catch defenses and troops, including the heroes, in sticky goo for a a couple seconds while enemy defenses, clan castle troops, and heroes are still after their opponents'. However, instead of the defenses being damaged, the troops and heroes will be damaged by the goo.

Total damage:
Level 1: 25
Level 2: 50
Level 3: 75
Level 4: 100

Cost:
Level 1: 20 Dark Elixir
Level 2: 40 Dark Elixir
Level 3: 60 Dark Elixir
Level 4: 80 Dark Elixir

Favorite Target: Any
Brewing space: 2
Time to create: 15m

How do you make polls? Do I just not have permission?

Sorry to burst your bubble, but this sounds like a repackaged and renamed "lighter" version of the poison spell, having all it's abilities for a cheaper cost.
This idea isn't original, is it?