currently lvling a rogue to 110, my question is: are sub rogues super hard to play, should i pick assa for constant dmg or sub for controll/dmg?
never played rogue tought i would give it a go in legion

Ass, or sub if youre a god

Sub rogues have the shadow strike ability making sticking to targets no problem. So depending on wat ur going against. All specs are viable depends on comp. Id suggest sub if ur good with monitoring charges and more in the midst of chaos or outlaw if ur super noob to rogue. Assn isnt hard though and is bursty compared fo outlaw. Try assn