Clutterfunky

Congrats! Fun fact: she has nothing for Shedinja. She just loses outright.

And I'm gonna have to agree with Alazir on this, there is some Hot Nonsense coming up next; but don't get too worried--you've gotten this far, haven't you?

I just got to the 6 vs. 12 battle last night and I'm just... what. WHAT.  HOW?!
Also I considered shedinja but ice beam would kill it, would it not?

1. Yeah I'm sincerely concerned about how I'm going to deal with that. My only idea is somehow abusing the terrain with like...a discharge user+a ground type helping hand user, or a setup sweepers wielding a spread move like earthquake+follow me support to get a free turn. Basically, empower a Pokemon so it can ko both Pokemon each turn for 12 turns, with the rest of the squad as backup once your sweeper goes down. 

Also maybe 2 Unaware Cosmic Power/stored power/lucky chant full defensive EV Clefable, and just set up for 6 turns and sweep that way. Very setup-intensive, however.

2. No, ice beam does not hit bug/ghost super effectively. Unlike grass, bug isn't weak to ice at all.