[WebsterVanCooney]

Can I throw on the proverbial Hipster glasses and mention Grass/Ice?

I like Abomasnow's type, but I hate having to use Abomasnow. Trust me, if you've never tried Hail, you're lucky, as you've never had to deal with fitting Abomasnow on your team. Seriously bad. However, Grass/Ice is purely rediculous offensively. Consider a Pokémon with both Grass and Ice STAB and a coverage move (HP Fire? Can I say that?). It competely destroys Sandstorm. Grass kills off Rock, Ice kills Ground, and such coverage move beats out Steels.

Rain is also hurt, as Water and Eletric is resisted and Ice is neutral. The Latis would fall without problem, and Politoed is fried by STAB Grass. This would require Rain teams to have to run multiple guys with HP Fire to counter, and that altered move slot could change a decent number of wins into losses.

Anyways, that's just what I think, guys.

tl;dr
Grass/Ice would wreck a lot of Sandstorm and Rain teams all by itself.