Thats my char, Im gonna only raid in assa. No other use. Can you give me some advice, maybe even link for some guide would be nice (stjern isnt helping much, dont like noxxic and icyveins). Im looking mainly for somethink like rotation/spell prio.
Since you have a good bit of mastery already from your gear, you can swap right into MP/AP or EP/AP pretty easily and perform well as you get some upgrades for certain slots and move into full Crit/Mastery gear.
In general for Sin, if you are MP/AP you want ~35-40% crit and as much mastery as you can get. EP builds want closer to 50% crit to smooth things out, but technically EP/AP is the strongest build with the gear available at the moment if you have the setup.
MP/AP will scale more as more gear is available, and tbh with your gear right now I could see you having success with MP and Exsanguinate.