Solid team. Nice to see someone else taking the offensive sand route :D
I have to agree with what everyone else is saying about SR on Deoxys-D - freeing up a slot for Tyranitar is amazing, and it will allow you to run Pursuit / Stone edge on your current set.
However, since your Scizor doesn't carry pursuit, it looks like your team may have trouble with SubDisable Gengar. It Shadowballs Deo-D, Sub-Disables your choiced attackers, Focus Blasts T-tar to hell and back or safely gets out (lack of pursuit :c) and can Disable your Scizor's bullet punch, which will mean Scizor will have trouble hurting him since he quad-resists Bug Bite and is immune to Brick Break.
Echoing what PK Gaming said, I strongly suggest Scarf Tyranitar
over your current one. The added speed and damage allow it to trap targets such as Latios/as, Starmie and Gengar with little trouble, and KO them with a Pursuit before they can faint him. I don't really recommend Band T-tar, seeing as you already have Band Terrakion, and popping a scarf on the afro-less afrobull would make his role overlap with Ditto.
4 HP / 252 Atk / 252 Spe
~ Stone Edge
~ Superpower / Low Kick
LK can be used over Superpower, since it gets the same 120 BP on other Tyranitars while getting 100 on Heatran and other important targets, but since T-tar is most likely dishing a hit and getting out, the stat drops aren't that big of a deal.
If you want to use Banded T-tar instead, try to have at least 112 Spe EVs to outspeed non-spe investment Politoeds and Skarmory, so you can 2HKO them if they switch into you.