So for this team I figured I would try to use slightly more creative sets than normal, such as Steelium Z SD Kartana & Choice Scarf Koko. I started off with Steelium Z kartana because it enables it to OHKO a lot of its non-steel type checks, e.g Mega Venusaur, Amoonguss and Marowak-Alola at +2. Timid nature & 19 Atk IV's gives you speed boosts from Beast Boost, since SD already makes your attack stat skyrocket, meaning extra atk boosts aren't particularly necessary, and +1 speed will help outspeed everything up to Scarf base 110+s, e.g latios and greninja. Since Kartana struggles with taking special hits & needs something to help break down steel types, I decided to use Tyranitar since it has the bulk to be able to take a hit or 2 whilst being able to set up a DD and dent steel types that Kartana cannot beat w/o a fightinium Z, e.g skarmory and celesteela. Originally, I used CB Ttar to pursuit trap mons that could outspeed Kartana, e.g gengar, latias and latios, but decided to use a mega in the end since I noticed I hadn't added a mega on the team and mega ttar is bulkier than normal ttar so can take hits better. Next, I needed a fighting resistance, so I added Tapu Fini which helps remove hazards & stallbreak with taunt & NM. Misty terrain also helps prevent Kartana being statused by T-Wave or WoW or anything of the sort. I added Scarf Koko because its quite unexpected compared to the standard offensive pivot/all out attacking sets commonly run, and it also checks rain teams very nicely, outspeeding up to +spe Kingdra in rain. (although this is with a timid nature, but modest may be used instead if you want more power such as guaranteed OHKO on Mega Swampert w/GK & you don't feel the extra speed is necessary. I highlighted its nature in bold so you know that the nature you choose is down to preference). Since I was still lacking a SR user & was very ground weak, I added Lando-T which also gives the ability to gain momentum with u-turn. Finally, since I was still weak to special attackers & lacking another resistance to grass, ground & fairy, I added celesteela which nicely beats anything that outspeeds & kills kartana, e.g scarf tapu lele, latios, gengar, greninja. Shed shell prevents you from being trapped by magnezone, which could then allow anything its partnered with, e.g specs tapu lele, m-alakazam, to run through this team quite easily.