EDIT: Rattata edits removed due to popular consensus as a gimmick.
http://www.smogon.com/dp/pokemon/glalie
Poorly done analysis. Leaving sets intact, lengthening opinions (one line is a tad short).
[SET]
Set name: Choice Band
Move 1: Ice Fang/Ice Shard
Move 2: Earthquake
Move 3: Explosion
Move 4: Crunch
Item: Choice Band
Ability: Inner Focus
Nature: Adamant
EVs: 6 HP/252 Atk/252 Spe
[SET COMMENTS]
<p>The physical power of Avalanche is nice (since you shouldn't expect Glalie to go before too much stuff, except in NU). Nevertheless, don't expect to be wowed by Glalie's physical attacking prowess. Still, Glalie gets reasonably good type coverage with Ice, Ground, and Dark types (Crunch is non-negotiable otherwise Ghost type switch ins are hard to kill). A CB Explosion is nothing to scoff at, and quite a few things will have a lot of trouble surviving that. You can opt for Ice Fang over Avalanche if you're not into negative priority.</p>
[SET]
Set name: Special
Move 1: Ice Beam
Move 2: Hidden Power [Ground]
Move 3: Explosion
Move 4: Shadow Ball/Block
Item: Choice Specs/Life Orb
Ability: Inner Focus
Nature: Modest
EVs: 6 HP/252 SpA/252 Spe
[SET COMMENTS]
<p>Ice Beam may be a better STAB move, but other than that the improvements are few. Shadow Ball is a good move to have in general, as is Ice Beam. You can always try for a Spiker Glalie, but naturally don't do Choice Specs with Spikes or Block. Once again Shadow Ball is for coverage, as is Hidden Power Ground. Explosion once again provides Glalie's probably most reliable way of killing stuff off. Life Orb opens up the possibility of Block as well as giving a nice power boost to Explosion.</p>
[SET]
Set name: Toxic Stall
Move 1: Protect
Move 2: Substitute
Move 3: Spikes
Move 4: Ice Shard/Toxic/Hail
Item: Leftovers
Ability: Ice Body
Nature: Impish
EVs: 252 HP/6 Def/252 Spe
[SET COMMENTS]
<p>This set really works best in conjunction with something that knows Toxic Spikes (Nidoqueen comes to mind in UU). Substitute and Protect allows you to bypass Glalie's middling staying power, while Spikes lets you get in some more residual damage (it works even better with Toxic Spikes when you have a shuffler too). Ice Shard is a nice utility-type STAB, allowing you to finish off opponents weakened from Spikes and Toxic. Speaking of Toxic, this set doesn't actually have it (unless you want to ditch the aforementioned Ice Shard), thus meaning it's best used on a team based around residual damage.</p>
[SET]
Set name: Pure spiker
Move 1: Spikes
Move 2: Ice Beam
Move 3: Shadow Ball/Block
Move 4: Explosion
Item: Leftovers
Ability: Inner Focus
Nature: Bold
EVs: 204 HP/48 Def/252 Spe
[SET COMMENTS]
<p>Be careful with this set and don't let it be a worse Froslass. While it may seem like that at first, as Glalie has a very similar moveset to a Spiking Froslass without the Shadow Ball STAB (it also can't block Rapid Spin). Despite these shortcomings, it can still Explode and either destroy or leave a gigantic dent in anything that thought it could stop Glalie's Spiking fun. Block also provides a good option if something that can't really do much switches in. It can also trap an Explosion target.</p>
[OTHER OPTIONS]
<p>Sheer Cold can go nicely with Explosion if you're lucky and it's not written out. Light Screen can go with Spikes to provide some support. Ice Shard can go in STAB slots if you want to go first. Hail allows Glalie to reap the benefits of Ice Body and is the only way to get the weather effect moving in UU, where Abomasnow is banned. Taunt is another thing</p>
[EVS]
<p>Max Speed is possibly the most important thing for Glalie, though you can take some off if you plan on using Ice Shard. A nice healthy investment in his offensive stat of choice is usually the best for him as well. From there, you can go with HP or either defense really. Taunt is a stalling option that gives Glalie a bit of an edge against statusers.</p>
[OPINION]
<p>As represented by its stats, Glalie isn't very good. Its movepool is rather unexciting and it isn't powerful enough to take advantage of the Ice STAB, while simultaneously being too defensively weak to make up for Ice's notoriety as a defensive type. As a physical attacker it's eclipsed by Mamoswine and Weavile, as a special attacker it's eclipsed by anything that can learn Ice Beam, and as a staller it's eclipsed by Walrein (who even shares the relatively exclusive Ice Body trait). He does have the ability to Spike, but his cousin Froslass can Spike and block Rapid Spin at the same time.</p>
[COUNTERS]
<p>Ghosts do a nice job as Glalie can't blow them up. Anything that can outspeed and OHKO Glalie (which isn't that hard) could be a counter; things with Mach Punch or Bullet Punch come to mind right away. Water types (Quagsire may be nice), particularly for the special set.</p>
http://www.smogon.com/dp/pokemon/glalie
Poorly done analysis. Leaving sets intact, lengthening opinions (one line is a tad short).
[SET]
Set name: Choice Band
Move 1: Ice Fang/Ice Shard
Move 2: Earthquake
Move 3: Explosion
Move 4: Crunch
Item: Choice Band
Ability: Inner Focus
Nature: Adamant
EVs: 6 HP/252 Atk/252 Spe
[SET COMMENTS]
<p>The physical power of Avalanche is nice (since you shouldn't expect Glalie to go before too much stuff, except in NU). Nevertheless, don't expect to be wowed by Glalie's physical attacking prowess. Still, Glalie gets reasonably good type coverage with Ice, Ground, and Dark types (Crunch is non-negotiable otherwise Ghost type switch ins are hard to kill). A CB Explosion is nothing to scoff at, and quite a few things will have a lot of trouble surviving that. You can opt for Ice Fang over Avalanche if you're not into negative priority.</p>
[SET]
Set name: Special
Move 1: Ice Beam
Move 2: Hidden Power [Ground]
Move 3: Explosion
Move 4: Shadow Ball/Block
Item: Choice Specs/Life Orb
Ability: Inner Focus
Nature: Modest
EVs: 6 HP/252 SpA/252 Spe
[SET COMMENTS]
<p>Ice Beam may be a better STAB move, but other than that the improvements are few. Shadow Ball is a good move to have in general, as is Ice Beam. You can always try for a Spiker Glalie, but naturally don't do Choice Specs with Spikes or Block. Once again Shadow Ball is for coverage, as is Hidden Power Ground. Explosion once again provides Glalie's probably most reliable way of killing stuff off. Life Orb opens up the possibility of Block as well as giving a nice power boost to Explosion.</p>
[SET]
Set name: Toxic Stall
Move 1: Protect
Move 2: Substitute
Move 3: Spikes
Move 4: Ice Shard/Toxic/Hail
Item: Leftovers
Ability: Ice Body
Nature: Impish
EVs: 252 HP/6 Def/252 Spe
[SET COMMENTS]
<p>This set really works best in conjunction with something that knows Toxic Spikes (Nidoqueen comes to mind in UU). Substitute and Protect allows you to bypass Glalie's middling staying power, while Spikes lets you get in some more residual damage (it works even better with Toxic Spikes when you have a shuffler too). Ice Shard is a nice utility-type STAB, allowing you to finish off opponents weakened from Spikes and Toxic. Speaking of Toxic, this set doesn't actually have it (unless you want to ditch the aforementioned Ice Shard), thus meaning it's best used on a team based around residual damage.</p>
[SET]
Set name: Pure spiker
Move 1: Spikes
Move 2: Ice Beam
Move 3: Shadow Ball/Block
Move 4: Explosion
Item: Leftovers
Ability: Inner Focus
Nature: Bold
EVs: 204 HP/48 Def/252 Spe
[SET COMMENTS]
<p>Be careful with this set and don't let it be a worse Froslass. While it may seem like that at first, as Glalie has a very similar moveset to a Spiking Froslass without the Shadow Ball STAB (it also can't block Rapid Spin). Despite these shortcomings, it can still Explode and either destroy or leave a gigantic dent in anything that thought it could stop Glalie's Spiking fun. Block also provides a good option if something that can't really do much switches in. It can also trap an Explosion target.</p>
[OTHER OPTIONS]
<p>Sheer Cold can go nicely with Explosion if you're lucky and it's not written out. Light Screen can go with Spikes to provide some support. Ice Shard can go in STAB slots if you want to go first. Hail allows Glalie to reap the benefits of Ice Body and is the only way to get the weather effect moving in UU, where Abomasnow is banned. Taunt is another thing</p>
[EVS]
<p>Max Speed is possibly the most important thing for Glalie, though you can take some off if you plan on using Ice Shard. A nice healthy investment in his offensive stat of choice is usually the best for him as well. From there, you can go with HP or either defense really. Taunt is a stalling option that gives Glalie a bit of an edge against statusers.</p>
[OPINION]
<p>As represented by its stats, Glalie isn't very good. Its movepool is rather unexciting and it isn't powerful enough to take advantage of the Ice STAB, while simultaneously being too defensively weak to make up for Ice's notoriety as a defensive type. As a physical attacker it's eclipsed by Mamoswine and Weavile, as a special attacker it's eclipsed by anything that can learn Ice Beam, and as a staller it's eclipsed by Walrein (who even shares the relatively exclusive Ice Body trait). He does have the ability to Spike, but his cousin Froslass can Spike and block Rapid Spin at the same time.</p>
[COUNTERS]
<p>Ghosts do a nice job as Glalie can't blow them up. Anything that can outspeed and OHKO Glalie (which isn't that hard) could be a counter; things with Mach Punch or Bullet Punch come to mind right away. Water types (Quagsire may be nice), particularly for the special set.</p>