Perhaps you could think about it a bit more
It seems like a nice mechanic that hasn't been seen in CoC before (altough i have seen it before in the forums) but the amount of information you give is quite underwhelming. And perhaps a spell like that could be a little op. even with a 3 tile range you can still target 2 defensive structures. This doesn't just let you use th effects of a freeze spell, it forces defenses to betray their allies. Imagine if you hit 2 multi-target inferno towers with this...