can /vp help me out with my Tyranitar nature?

Hes my favorite pokemon and I want to include him on my new Sun and Moon team. I have a one already that is a dragon dance set.

the one I am breeding though, I want it to be interchangeable from being a choice scarf user with some special attack and a support version with also some special but also physical attacks.

What nature should I use for each?

support -
smooth rock/chople berry
Rock slide
Fire blast/icebeam
crunch
stealth rock


and then my choice band

with
Rock slide
icebeam
fireblast
dark pulse/crunch/superpower