Dark spell - Time lock

My idea is a new dark spell called Time Lock. It would function similar to the freeze spell, accept instead of freezing a small area it would freeze all attacking and defending units (will not stop battle timer) for just a few short seconds. Their would be 3 levels with the freeze time increasing slightly each level. The purpose of the spell would be too pretty much pause the attack very briefly. This would allow the attacker a brief moment to look over his attack and make adjustments where need be. This spell would be available at Town Hall 10 for lv 1 and 2 and would max at lv3 at Town Hall 11. With an ever-expanding game and only a three-minute battle timer i belive that this spell would prove valuable in tactical assaults.

Time Lock (rough draft)
LV 1- 1.5 sec time freeze
LV 2- 2.0 sec
LV 3- 2.5 sec

Thanks for reading and I'm looking forward too everyones feedback.