Stupid or not?

On my Hierophant would it be stupid to try for 2 main skills?
Was thinking a 5/6 link 2h weapon and a 5/6 link chest.
Skills i think may work are shockwave totems and freezing pulse.
Will use Hrimsorrow gloves for 100% phys to cold.
Thanks.

I was thinking you meant two 5 links in the chest. A lot of builds do run two 6-links, in particular some bow builds. I think one of the downsides is you will need to be efficient with your other skill slots, since you will be down to 12 for all your non main skill gems.

Was thinking Hiero gives +1 to totem number combined with multiple totems support along with a very strong skill such as freezing pulse and using Hrimsorrow gloves for 100% cold conversion "should" work?

I've got no idea if that would be amazing or terrible. The thing with extra totem is you get it on a single skill anyway, so is it worth it having a second skill? If the skills interact somehow maybe it's good.

I don't know that much about totems so I don't want to give you bad advice.

The reason bow skills do this sometimes I think is to have a skill that clears well and a skill that does single target, or sometimes a skill that does a range of utility.

If you are using 2 skills you probably need a way to buff them both simultaneously. I guess hiero might be able to do that with transfiguration of mind. I guess you are thinking about this with the cold conversion so you might have that covered, but what's the benefit of having the two skills versus just all totems of the same skill?