Hey ClubbingSealCub, very nice team, Sandslash is very underrated and I remember that when I was doing The Outsiders Challenge you seemed to be the only other person on the ladder using sand :)
Anyway, I think Return over X-Scissor is worth a mention on Sandslash. This may seem like a weird choice considering Return offers absolutely no super-effective coverage, but it does offer some nice neutral coverage. Return makes your sweeps more "hax free" alot of the pokemon that you have to resort to using the horrible stone edge to kill can be hit harder and more accurately by Return and all the pokemon you use X-Scissor for are also hit with Return. You miss out on hitting dark types (Hydreigon & Tyranitar), psychic types (Reuniclus, Deoxys-D, Espeon, Alakazam, Latios, Latias & Starmie) and Grass Types (Celebi & Abomasnow) for super effective damage, but as you know all those psychic types can be taken out by Tyranitar and other than Lati@s they're all hit harder by Soft Sand boosted, STAB boosted Earthquake. As you can see only 2 of the grass types in ou are actually hit harder by X-Scissor than they are by Return and one of them is trapped by Tyranitar anyway. For dark types, Tyranitar is hit alot harder by Earthquake. So, you only have the very uncommon Abomasnow and the somewhat common Hydreigon to worry about coverage-wise in return for a move that does more damage to more common pokemon and hits them more accurately like; Rotom-W, Landorus (who is one of your biggest threats and I can imagine you only needing to hit a Stone Edge to finish off a weakened Landorus to win the game but then missing and losing a_a), Breloom etc.
Shadow Claw over X-Scissor is another good choice as it offers the same coverage as X-Scissor outside of Hydreigon and Abomasnow, but helps with your Sub Disable Gengar problem.
Anyway I hope this rate helped and GL with the team! Luvdisc'd :)
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