Dont underestimate a necro summoner build

[Keitaro]

Keit..what if summoners are against a real good frozen orber?

As long as the sorc have maxed cold mastery you got a problem.
Lets say that the normal skill is -200.
Skeletons have 71-72% resist cold.
but now they have -100 wich is max.
Frozen Orb dmg is 1k and the dmg the skeletons will take is 2k cold dmg from each bolt that hits them.
The skeletons will probably die so fast you wont know what happened.
Try tele to the sorc as fast as possible and get some use of the skeletons.(if you are lucky)
Here you and your merc have to do the job.
Berc cannot be frozen so he can do some dmg, but you MUST fire bone spirits on her so she die.

Summoner necromancer is good, but he aint overpower.