funny gliscor being banned when it's easy countered by any water/ice type
instead of sending it to ubers they should make some stuff like Mamoswine and Rotom-W back to OU
1. There are almost no Ice moves to be had in OU.
2. The Ice moves we did have, such as Ice Spinner on Great Tusk and Dragonite, became MANDATORY because of Gliscor (overly-restrictive teambuilding = unhealthy metagame). Besides, you run Ice Spinner on your Great Tusk and then what? You get 60-80% off so you can get Toxic'd and for Gliscor to just protect off 25% immediately, and come back later to heal the rest?
3. Most waters are fats like Milotic that do not want to eat a Toxic from Gliscor just get to get a marginal amount of damage off that Gliscor will heal off anyways.
4. We can't just "make stuff OU." It's determined by player usage over the month, which is determined by everything else in the metagame. Mamoswine and Rotom-W haven't been "made OU" recently because they are severely outclassed by other Ground types (Great Tusk, Landorus-T) and Ground-immune pivots (Zapdos, Moltres). Not to mention that Rillaboom is the rising star of the month and dunks on both of them.
5. Evidently, given that Gliscor was banned, the existence of these Pokemon (which btw are still usable in OU despite not being OU status) was not enough to handle Gliscor (again, because these Pokemon are severely outclassed and get stomped by a lot of things in the meta)