I'd like to see Cryogonal moved up at least one rank. It is one of only three pokes with access to rapid spin, which not only rids your team of stealth rock, but also keeps your own up, which is huge in a metagame compromised by mainly flying types. It also had decent special bulk, status, recovery and also STAB ice beam/freeze dry, with decent speed to back it up. With the only spin blockers being Rotom, Haunter and Driftblim, it has a very easy time of it. It can come in on top tier threats like Thundurus lacking focus blast, Zapdos, Uxie and Cresselia.
I'd also suggest moving Zapdos up a rank. While not as bulky as Cresselia, and having a weakness to stealth rock, it has STAB tbolt/voltswitch, better recovery, a non-useless ability and more importantly, defog.