Idea for an addon to the new poison spell.

Lately with all the sneak peaks, I happenes to come about the poison spell via youtube. I believe that this spell is a great idea on its own but I have a suggestion that will make it interesting. So to start off with my point, if YOUR REGULAR troop got hit in YOUR poison spell, they will take damage. This just makes it so you cant just poison cc troops then dragon. So now you're probavly wondering, "how do my troops become imune?". I present to you "immunity" so basically what this does is it 'exposes' your troop so they dont take damage from the poison spell. This will be in the labaratory as a upgrade and will show up across from the level of the troop. For lvl 2, the poison spell will act like a rage spell for these units but will cost alot more and their durration will decrease. This is my idea and fiddle with it as much as you like and itd also be pretty cool if their was de troop based off this concept.

Thanks for reading,
-loudbeep