Skids was brainwashed by Stryfe along with Rusty and joined the Mutant Liberation Front until X-Cutioner's Song with Stryfe's defeat. Then during Fatal Attractions Magneto removed the brainwashing and in gratitude they were the first pair of mutants to have joined Avalon.
For a few years they remained on the station being the "good" Acolytes along with Colossus. Then Age of Apocalypse happened and right after the event Holocaust was found by the Acolytes. Rusty was among several Acolytes that Holocaust killed before he destroyed the space station.
Then Skids vanished for a time popping up here and there in random books (she was apart of the X-Corps and popped up now/again on X-Force). I believe next she was depowered during the whole House of M event. When last she was seen was during Brubaker's Uncanny X-Men run during the Morlocks searching for Magneto by using the book of Destiny. At the end of the story, Skids handed Magneto the book for safe keeping but disregarded it as nonsense. Magneto believed differently.
Royal Nonesuch wrote:I think Skids was killed in X-Force by the Purifiers. X-Force was about to save her, but then they got blasted into the future for a whole other storyline and she was shot and kind of left there. I don't remember if they ever went back for her. If only The Purifiers knew they didn't have a right to hit her.
That was Boom Boom not Skids.At the end of that arc the Leeper Queen shot Tabitha. Then at the end of Messiah War X-23 pretty much willed or did something so that she could return back to that location and shot the Leeper Queen in the head killing her and thus saving Boom Boom. Then the division that created Laura showed up and bagged her leaving Boom Boom and the corpse of the Leeper Queen for X-Force to find.