OK, this is my first attempt to post a set in QC and I started using it shortly after the ban of Salamence, where I predicted that people would try and replace Salamence with other Dragon Dancers, and Scarf 100s would drop in use.
http://www.smogon.com/dp/pokemon/gliscor
[SET]
name: Choice Scarf
move 1: Earthquake
move 2: Stone Edge
move 3: U-Turn
move 4: Night Slash/Thunder Fang/Ice Fang
item: Choice Scarf
nature: Adamant
evs: 4 HP / 252 Attack / 252 Speed
ability: Hyper Cutter
Why this set deserves:
-Able to outspeed a number of Speed boosting threats, including DD Dragonite, Gyarados, Kingdra and Tyranitar, as well as outspeed +2 Modest Empoleon.
-Outspeeds all non-scarfed Pokemon (except for Ninjask).
-Immunities to Ground and Electric moves and solid Defense, gives Gliscor many opportunities to switch in.
-Can scout your opponents team for levitators/flyers.
-No other set like this on-site.
Additional Comments:
-Thunder/Ice Fang can be used to revenge Gyarados and Dragonite after Stealth Rock.
-Jolly Nature can be used to outspeed Scarf Rotom-A, but the drop in power could cost you certain KOs.
Teammates and Counters:
-Hippowdon and bulky waters can wall you all day long, while healing any damage taken.
-252/252 Bold Blissey can heal the damage she takes with Softboiled/Wish+Protect, while you waste your PP.
-Bulky flyers/levitaters such as Skarmory, Rotom-A and Zapdos can cause some trouble.
-Iron Ball Trick Metagross can switch into Ice attacks, while luring the previously mentioned bulky flyers/levitaters and grounding them, allowing you to hit them with Earthquake, and can explode on bulky waters.
-Sandstorm support is helpful by negating Leftovers recovery on defensive Pokemon, but not necessary.
-Specially based MixApe can deal with Hippowdon, Blissey and Skarmory (and weaken bulky waters).
-Shaymin can switch into STAB Surfs from bulky waters and hit them with Seed Flare, though must watch out for any Ice attacks aimed at Gliscor.
-Stealth Rock.

http://www.smogon.com/dp/pokemon/gliscor
[SET]
name: Choice Scarf
move 1: Earthquake
move 2: Stone Edge
move 3: U-Turn
move 4: Night Slash/Thunder Fang/Ice Fang
item: Choice Scarf
nature: Adamant
evs: 4 HP / 252 Attack / 252 Speed
ability: Hyper Cutter
Why this set deserves:
-Able to outspeed a number of Speed boosting threats, including DD Dragonite, Gyarados, Kingdra and Tyranitar, as well as outspeed +2 Modest Empoleon.
-Outspeeds all non-scarfed Pokemon (except for Ninjask).
-Immunities to Ground and Electric moves and solid Defense, gives Gliscor many opportunities to switch in.
-Can scout your opponents team for levitators/flyers.
-No other set like this on-site.
Additional Comments:
-Thunder/Ice Fang can be used to revenge Gyarados and Dragonite after Stealth Rock.
-Jolly Nature can be used to outspeed Scarf Rotom-A, but the drop in power could cost you certain KOs.
Teammates and Counters:
-Hippowdon and bulky waters can wall you all day long, while healing any damage taken.
-252/252 Bold Blissey can heal the damage she takes with Softboiled/Wish+Protect, while you waste your PP.
-Bulky flyers/levitaters such as Skarmory, Rotom-A and Zapdos can cause some trouble.
-Iron Ball Trick Metagross can switch into Ice attacks, while luring the previously mentioned bulky flyers/levitaters and grounding them, allowing you to hit them with Earthquake, and can explode on bulky waters.
-Sandstorm support is helpful by negating Leftovers recovery on defensive Pokemon, but not necessary.
-Specially based MixApe can deal with Hippowdon, Blissey and Skarmory (and weaken bulky waters).
-Shaymin can switch into STAB Surfs from bulky waters and hit them with Seed Flare, though must watch out for any Ice attacks aimed at Gliscor.
-Stealth Rock.