Originally Posted by Fat R_N
My Sandslash currently has 75 Sp. Defense at level 51 (and for reference 152 HP, 122 attack, 136 defense)
Do you have a special defense lowering nature? Mine has a neutral nature.
As for just being there I'd have to argue against that. I've been using mine a fair bit for hitting poisons, rocks, ghosts (I opted for Shadow Claw over Rock Slide; apparently Sandslash can outspeed most of the Jellies, who knew) and just general hitting of things. But that will probably vary based on people's team mates
These are things that Excadrill and Krookidile can do better, though. Sandslash is terribly outclassed by Excadrill, and for the most part, becomes dead weight come endgame. It can't defeat any of the bosses without serious help (sans Elesa), and that terrible SpDef means I can't usually switch it into something it should be able to kill because it takes serious damage/gets killed itself because it's so slow.
EDIT: I got the "wonderful" Bold nature, since I'm not picky in-game. Excadrill also has amazing availability, while Sandshrew just has the Desert Resort. It's possible to get a Level 55 Excadrill in Giant Chasm if you really want one late in the game. Don't forget that Excadrill gets everything that Sandslash gets, including Swords Dance. Krookidile has either fake bulk or Moxie to boost its attack (does it get Hone Claws?)
Please tell me how many Physical attackers there are after Mistralton that are of any note at all? How about Gym Leaders that it can trounce? Drayden and Marlon both steamroll Sandslash, Zinzolin has Ice types, a whole bunch of the Plasma Grunts have special attackers, and Ghetsis is...Ghetsis.
The E4 is primarily Special Attackers as well, with Marshal and Grimsley being the only two who don't use Special Attackers (Iris, Caitlin and Shauntel all use Special Attackers)
I'm perfectly fine with moving Sandslash to Mid, though. I may have been a bit harsh on it.
Availability: It comes on Route 16, which is available just before the 4th gym.
Stats: It has good Special Attack, especially once evolved, but is somewhat slow and its defenses aren't great.
Typing: Psychic is a real mixed bag. It has troubles with much of Team Plasma just because it's weak to Dark, but it dominates most Fighting-types because of that same typing.
Movepool: Getting Psyshock early is nice, but otherwise it's not too great until late. It really wants that Signal Beam tutor in Driftveil which isn't expensive, just so it can do something to Psychic- and Dark-types. Charge Beam is there too, but isn't too helpful. Thunderbolt at the Elite Four, however, is.
Major Battles: Clay is a problem for Gothita, as are Drayden and Grimsley. It's actually good for facing Marshal, but otherwise it's neutral, and Gothitelle has some trouble keeping up with neutral things late.
Additional Comments: Psychic is better than Psyshock at the end, by the way. Psychic comes by level or on Route 13, whichever comes first.
Seems to me that Team Plasma uses more Poison types (read, Trubbish and Zubat) than Dark types. And if Sandslash's not frail, than Gothitelle certainly isn't, with 70/95/110 Defenses (read: Better than Reuniclus' 110/75/85) I actually left Psyshock AND Psychic on because that's kinda the gimmick with Psychic types in Gen 5; they hit both Physical and Special using their Special Stat. 95 Base SpAtk is fine (Crobat has Base 90 Physical, for example) and has the same base speed as Sandslash, which Manic Martini just pointed out, is acceptable (and I'm accepting that notion). Gothitelle's speed is nothing compared to Reuniclus' speed, though. Base 30 is terrible. Energy Ball is available just after you get Surf in Aspertia Town, and Charge Beam is actually pretty decent since it tends to raise that SpAtk after it's used. It's also useful for taking down Marshal.