Gligar was an interesting Pokemon back in gen 2 no thanks to its unique typing and defensive stats. It's just a shame it could not be caught in Silver version, you had to wait until the 8th gym to catch one, and in gen 2 it couldn't even learn Earthquake or Wing Attack naturally (WTF!?). Fortunately in gen 4 it was one of several Pokemon that got a new evolution, and with it a significant boost to its stats and movepool, allowing it to become one of the most versatile Ground types in the game. A sweeper? Wall? Utility? Gliscor can do all of that and more, making it a premiere choice to any BDSP team...once you get to the POST GAME that is! XP
Soaring Scorpion Sweep:
Ability: Poison Heal
Item: Toxic Orb
Nature: Jolly (+Speed -Sp.Att)
EVs: (HP 4) (Attack 252) (Speed 252)
Moves:
Swords Dance
Earthquake
Acrobatics
Fling
Set Details:
A Swords Dance sweeper. Set up your attack and then fire off Earthquake after Earthquake while using Acrobatics as coverage. To boost Acrobatics from 55 -> 110 base power you will have to use Fling to get rid of your Toxic Orb, and honestly once you have been poisoned the orb is pretty much useless since Gliscor's Poison Heal will work even if you aren't holding it anymore, unless you have a teammate that runs Aromatherapy or Heal Bell that is. Not to mention flinging the Toxic Orb inflicts bad poison to your target, making a sort of single use Toxic that can be used against bulky and defensive targets.
Stall-Wart Scorpion
Ability: Poison Heal
Item: Toxic Orb
Nature: Jolly (+Speed -Sp.Att)
EVs: (HP 252) (Def 4) (Speed 252)
Moves:
Toxic
Substitute
Protect
Earthquake
Set Details:
I ran this gimmick set back in my Sun/Moon days, and it is a real doozy if you can transfer one over from Pokemon Bank (It can't learn Toxic anymore). Lay down Toxic and then stall with a combination of Protect and Substitute. Thanks to Poison Heal recovering 1/8 of your health instead of Leftovers measly 1/16, if you alternate between Protect and Substitute you will be able to heal off the 1/4 health Substitute without any HP loss, making Gliscor the only Pokemon that can stall indefinitely. If you are slower than Gliscor, then you won't be able to attack Gliscor at all. Finally we have Earthquake that hits Poison and Steel types that are immune to Toxic. So unless you are packing a Pokemon with Taunt, or Crobat, Skarmory, or Bronzong, you will ragequit pretty hard facing this troll set.