I just dug up a sheet full of typos that i never reported for Farfetch'd through Groudon. Granted, this was from like October-November 2010, so some may be fixed, but I'll try to screen those out.
http://www.smogon.com/dp/pokemon/farfetchd
In the opinion section, it says:
...some interesting moves none of which can be employed to their full potential...
Add a comma between "moves" and "none".
http://www.smogon.com/dp/pokemon/floatzel
In the third paragraph of the Physical Attacker set, it says:
...especially considering its lackluster Attack - it needs all the power it can get.
The dash there should be an em dash instead of a regular one.
In the second paragraph of the Bulk Up set, it says:
Max Attack is used to make Floatzel hits as hard as possible...
"Hits" should be "hit"
http://www.smogon.com/dp/pokemon/garchomp
In the second paragraph of the CB set, it says:
As with the Choice Scarf set, Dragon Claw is useful to finish off weakened Pokémon without becoming locked into.
I believe the author left out "Outrage" at the end of the sentence.
http://www.smogon.com/dp/pokemon/gengar
In the second paragraph of the Life Orb set, it says:
...a lot of Steel-type Pokemon in the game - Scizor, Metagross, and Jirachi, to name a few - can come in on most of Gengar's attacks...
Those dashes should be em dashes.
http://www.smogon.com/dp/pokemon/giratina
In the third paragraph of the Great Wall set, it says:
It doesn't help that Giratina possesses weaknesses to Dragon-,Ice-, Ghost-, and Dark-type attacks...
It should read "Dragon-, Ice-,..."
In the second paragraph of the Calm Mind set, it says:
...and will laugh at even a boosted Dragon Pulse , especially since...
There shouldn't be a space between "Pulse" and the comma.
In the bottom of the third paragraph of Team Options, it says:
...if Giratina lack Will-O-Wisp...
That should say "lacks".
In the last sentence of the Calm Mind set, it says:
...thanks to its resistance to ExtremeSpeed
There is no period at the end of this sentence.
http://www.smogon.com/dp/pokemon/giratina-o
In the fourth paragraph of the Mixed Attacker set, two mistakes appear:
Many of the common leads fall to it - Deoxys-S will not pull off...
...which fails to OHKO Giratina-o...
The first requires an em dash, while the second requires capitalization of the "o".
In the ninth paragraph of the Stallbreaker set, it says:
Giratina-O is able to defeat or severely weaken Support, Bulk up, and Choice Scarf sets...
"up" needs capitalized. The last sentence of that same paragraph has the same mistake.
In the eleventh paragraph of the Stallbreaker set, it says:
Even if Kyogre is carrying 252 HP EVs,it will often be...
There needs to be a space between the comma and "it".
In the fourth paragraph of the Sleeping Beauty set, it says:
Having an immunity to Earthquake never hurts either-the more free switch ins possible, the better.
There should be an em dash and two spaces around it there.
In the third paragraph of Team Options, it says:
(Dragon Pulse or Dialga, Ice Punch for Metagross, and Hidden Power Ice for Heatran)
"or" should be "for".
In the fourth paragraph of Team Options, it says:
...while Giratina-O covers there weaknesses...
"there" should be "their"
In the second paragraph of EVs, it says:
...provided that both Giratina-O and Kyogre has the same number of boosts...
"has" should be "have"
In the second paragraph of Opinion, it says:
...Forretress can not Spin away any entry hazards that is set up by Giratina-O’s teammate(s)...
"is" should be "are".
In the first paragraph of Counters, it says:
The Special Attacker can be stopped by Latias with proper EVs , but only if Stealth Rock is not present.
The space after "EVs" is extraneous.
In the third paragraph of Counters, it says:
...who can take all of Giratina-O's attack with ease...
"attack" should be "attacks".
http://www.smogon.com/dp/pokemon/gliscor
In the second paragraph of the Swords Dance set, it says:
...gives Gliscor great coverage paired with Earthquake - hitting everything in OU except Breloom...
There should be an em dash in place of the regular dash.
The same problem exists in the third paragraph of the same set, as well as in the first sentence of Optional Changes.
Skarmory is a great asset, since his main weakness - Electric-type attacks - is covered by Gliscor easily.
Gliscor has a wide array of moves at his disposal - nearly any set listed here can use...
http://www.smogon.com/dp/pokemon/gorebyss
In the second paragraph of Opinions, it says:
As a pure Water-type, Gorebyss isn't resistant to Normal or Flying-type attacks; however, it also isn't as vulnerable to Mach Punch, Vacuum Wave, Ground attacks, and unexpected Hidden Power Grass.
"...or an unexpected Hidden Power Grass." would fit better.
http://www.smogon.com/dp/pokemon/granbull
In the first sentence of Other Options, it says:
Payback is more powerful than Crunch if Granbull goes last, or use it on the switch...
"use" should be "uses".
http://www.smogon.com/dp/pokemon/groudon
In the fourth paragraph of the Rock Polish set, it says:
There are three main walls in Ubers that will give Groudon:...
It appears the author left out "trouble" or "problems" at the end of that statement.
In the last paragraph of the Support set, it says:
While on the surface, this set does not look like your typical wallbreaker.
"While" makes this a sentence fragment, so remove that and capitalize "on" as a result.
In the first paragraph of the ParaDancer set, it says:
It's best to Thunder Wave in the early-game when almost every Pokemon is faster than Groudon.
"in the early-game" is technically grammatically correct, but somewhat awkward. "Early on in the game" sounds better, in my opinion.
And that's all.