http://www.smogon.com/dp/pokemon/gliscor
The "standard" set (Physical Wall) is somewhat outdated and I believe that it could use an update.
I believe this set is more useful as nowadays it's very important for Pokemon to reach 280 speed if they can, especially if they're designed to counter lots of Pokemon that hover around there. U-turn, which isn't listed in the standard set, is also a great move in this faster-paced metagame, and allows for a potential free switch-in to gain the advantage.
Note: I've run this set by j7r and he encouraged me to post it ;).
-------------------------------------------------------------------------
Gliscor
[SET]
name: Standard
move 1: Earthquake
move 2: Roost
move 3: U-turn / Ice Fang
move 4: Stealth Rock / Taunt / Knock Off
item: Leftovers
ability: Sand Veil
nature: Impish
EVs: 156 HP / 136 Def / 216 Spe
[SET COMMENTS]
<p>Gliscor has just the right base stats, movepool, and typing for what it needs to do: counter many physical attackers and support the team at the same time. Its STAB Earthquake 2HKOs Tyranitar and OHKOs Lucario, and also does a decent amount of damage to most fragile switch-ins. U-turn is a very viable option because most of the Pokemon that switch into Gliscor are fast special attackers such as Starmie. You can U-turn out in that turn to both scout out your opponent's team and gain the advantage for that situation. However, Ice Fang hits Salamence super-effectively, and can actually OHKO it if it's suffered Stealth Rock damage.</p>
<p>Your choice of move for the fourth slot depends on the needs of your team. Stealth Rock is a great option for Gliscor if you lack a Pokemon that knows it in your team. However, if you don't need that, Taunt and Knock Off are also both useful options. Taunt shuts down slower team-supporters such as Hippowdon, and can even stop offensive Pokemon from setting up on you, such as Lucario or Gyarados. On the other hand, Knock Off is a great support option that isn't stopped by Taunt, and can give you insight on what set your opponent is running, as well as possibly ruining their Pokemon in the process. Roost is a must-have for this set; it gets rid of Gliscors 4x Ice weakness and helps keep Gliscor alive throughout the battle.</p>
<p>The 216 Speed EVs grant Gliscor 280 Speed, beating out the fastest non-Scarfed Heatran you will find, as well as any neutral-natured base 90 Speed Pokemon, such as Porygon-Z or Lucario. This is especially helpful in countering the latter, which may carry Hidden Power Ice to deal with Gliscor specifically. The HP and Defense EVs provide for the best overall physical defense.</p>
--------------------------------------------------------------------------------------------------------------------------------
Notes for the "other options" section:
The "standard" set (Physical Wall) is somewhat outdated and I believe that it could use an update.
I believe this set is more useful as nowadays it's very important for Pokemon to reach 280 speed if they can, especially if they're designed to counter lots of Pokemon that hover around there. U-turn, which isn't listed in the standard set, is also a great move in this faster-paced metagame, and allows for a potential free switch-in to gain the advantage.
Note: I've run this set by j7r and he encouraged me to post it ;).
-------------------------------------------------------------------------
Gliscor
[SET]
name: Standard
move 1: Earthquake
move 2: Roost
move 3: U-turn / Ice Fang
move 4: Stealth Rock / Taunt / Knock Off
item: Leftovers
ability: Sand Veil
nature: Impish
EVs: 156 HP / 136 Def / 216 Spe
[SET COMMENTS]
<p>Gliscor has just the right base stats, movepool, and typing for what it needs to do: counter many physical attackers and support the team at the same time. Its STAB Earthquake 2HKOs Tyranitar and OHKOs Lucario, and also does a decent amount of damage to most fragile switch-ins. U-turn is a very viable option because most of the Pokemon that switch into Gliscor are fast special attackers such as Starmie. You can U-turn out in that turn to both scout out your opponent's team and gain the advantage for that situation. However, Ice Fang hits Salamence super-effectively, and can actually OHKO it if it's suffered Stealth Rock damage.</p>
<p>Your choice of move for the fourth slot depends on the needs of your team. Stealth Rock is a great option for Gliscor if you lack a Pokemon that knows it in your team. However, if you don't need that, Taunt and Knock Off are also both useful options. Taunt shuts down slower team-supporters such as Hippowdon, and can even stop offensive Pokemon from setting up on you, such as Lucario or Gyarados. On the other hand, Knock Off is a great support option that isn't stopped by Taunt, and can give you insight on what set your opponent is running, as well as possibly ruining their Pokemon in the process. Roost is a must-have for this set; it gets rid of Gliscors 4x Ice weakness and helps keep Gliscor alive throughout the battle.</p>
<p>The 216 Speed EVs grant Gliscor 280 Speed, beating out the fastest non-Scarfed Heatran you will find, as well as any neutral-natured base 90 Speed Pokemon, such as Porygon-Z or Lucario. This is especially helpful in countering the latter, which may carry Hidden Power Ice to deal with Gliscor specifically. The HP and Defense EVs provide for the best overall physical defense.</p>
--------------------------------------------------------------------------------------------------------------------------------
Notes for the "other options" section:
I think knock off should be other options, taunt and stealth rock are more useful to gliscor in battles.
Oh yeah, Ice Shard... nevermind the 285 then. 281/2/3?
Stone Edge Gliscor can outspeed and threaten Gyarados, Ice Fang has to switch out.