Decoy Spell

This spell would basically be placed and all the defences would target that one area. There would be a small red spot where the defences target and the area that it covers would be pink.

The spell's use would be to distract a few defences while you plow through them with your troops.

The duration and the area would increase with each upgrade. However, if you drop the spell on your own troops, then they will be targeted by the defenses, so you must be careful!

I will figure out the cost and everything if the idea is good.

I would better say the spell Drops a dummy and all defences attack that Dummy until it dies?
A bit op