Glaceon being in A over A+ imo is the meta not favouring average speed breakers rn since offence is still quite strong in the tier and a lot of faster things (Floatzel, Pinsir, Monferno) really bother it. Glaceon is still a massive threat that can kill most things that isn't called Probopass if it gets in and yeah, it's a tough mon to handle too on the builder.