New Defense: the cold shoulder

Having trouble with too many troops? Then give them the Cold Shoulder!
Ground and splash
comment what DPS should be
5-8 tile range
400HP at max
at max, freezes targeted troops permanently every 3 seconds. 3x3 tile splash damage and freeze.
will accidentally freeze frozen or friendly troops, who are frozen for 3 seconds, but will not target them no damage to friendly troops
will not freeze Heros
Golems and lava will split as normal when they die, but the minis are frozen.
Does 100 plus DPS to air troops because they fall, then they are frozen as ground troops for 3 secs, after that, they go back to air
it takes 3 secs for an inferno tower to unfreeze troops frozen by this.
looks like an inferno tower made of ice with top as jagged peak made of ice, no canister and no lava pool.
does 6x damage to lava hound.
freeze spells don't work on this.
1 6-7 mortar shot to unfreeze
CC drags, lava hounds, and lava pups can 1 hit unfreeze frozen troops