I've looked long and hard, and this seems to be the most fitting place to post this.
So then, while none of these moves are listed for these mons in the Smogon Dex, Blaziken and Swampert do get their punches on Lab. Absol, however, lacks the move listed in both Lab and on Smogon, and has no good coverage moves on Lab due to a lack of Superpower (the funny thing is that Absol has Superpower listed on all his sets so it logically should be listed as a move).
Just a couple examples. You could also check the respective mon's pages to find the moves listed there as well.
Help me out here, in the time being Absol is not very useful on Lab >.>