Defensive spells?

I would like to see some defensive spells added.
The can be placed inside of your base much like a bomb or trap that goes unseen.
Some ideas would be a anti heal spell trap, target 10-15 spaces and healing effects would be countered during the duration of the spell say 5-15 seconds. Then have to rearm them just like a bomb costing 10K+.
Maybe a slow down trap where troops are slowed down inside of it both movement and damage rate.
Maybe something like a poison trap where it does low damage to all troops inside of it lvl 1 being -1/sec for 5-15 seconds.
And be able to upgrade them just like normal spells increasing there effectiveness.
Set the trip radius at 3 spaces.

I really hope SC implements this. :)

Nice idea, might be a bit OP in some ways, though offense is already OP so why not make Def OP :rolleyes: