GSC Inverse OU has just become the chosen RoA Spotlight Rotational Ladder for March by popular vote. However, right now the ladder isn't very active so I am making a thread for discussion to hopefully prompt people to try it out.
GSC Inverse OU is GSC OU but in a mode where resistances and weaknesses are reversed. Immunities become 2x weaknesses, 4x weaknesses become 4x resistances, 2x resistances become 2x weaknesses, etc. As you might expect, this completely flips the type chart around and turns Steel into a terrible defensive typing, Raikou into a horrible Zapdos answer, etc.
So how does this affect the GSC OU metagame? One very obvious and critical change is that nothing resists Explosion, or Normal-type attacks in general. This means that counterplay to Explosion is limited to things like extremely high Defense Pokemon that aren't Rock/Steel types, Protect users, Substitute users, Reflect, Curse, Acid Armor, faster Sleep, etc. Snorlax also no longer has any real need for coverage attacks, meaning it will probably be running something like Curse / Protect / Lovely Kiss / Return or RestTalk, or Self-Destruct etc.
What strategies do you think will be/are effective? Is anything outside of exploders / Normal-types viable? Is this Flail Dodrio's time to shine? Let us know in this thread.