Anyways I got a more precise ideas added into the ward
15k, NOT dispellable, 2000hp
Once the ward is in effect, units in the effected area take 5 times more physical damage and movement speed s slightly slower. But still, it will block ANYTHING from altar too nova in magic terms.
The physical damage effect won't apply to the ward itself. (Demolishers can easily kill this like a deathtower)