OK, here's my Kartana's stuff (which is pretty good, I think)
Kartana @ Steelium Z
Ability: Beast Boost
Nature: Quiet (I wish I could change that...)
EVs: I don't know. I forgot what Pokemon I defeated.
Here are my explanations for each move:
Leaf Blade: Awesome Grass-type damage
Smart Strike: Good STAB damage, just in case accuracy is lowered.
Psycho Cut: Covers weakness of fighting types, good for critical hits.
Sacred Sword: For amazing Fighting-type damage, when going up against Pokemon such as Incineroar or Heatran.
All these moves are physical, so they'll do extreme damage especially with Beast Boost.
Steelium Z is a last resort. Fighinium Z works too.