By that logic we should roll back every time anyone ever completed quests in a group, since 2004. That’s going to be a lot of rollbacks, considering scaling didn’t exist for most of the game’s life and is hardly perfect for grouped questing now.
Because i like playing solo and most groups in WoW always end up being gogogogogogogooooooo crap that just for me personally sucks all the fun and enjoyment from the game.
Bdks as they can grab everything and just don’t die to open world/Delve stuff.
Ret as they can nuke down mobs, have my lil pony to squirt from one pack to next, plus you can build a fast mount build to get around quicker. Self heals and if it’s too spicy throw on a shield and run a tank spec. Both can raid comfy.
Fury warrior feels quite easy for solo content and delves. It has 3 interrupts (2 of them are also stuns), plus a spell reflect which is also very useful. Also, 3 healing abilities and some massive damage burst cooldowns. I have been able to solo delves of my recommended gear level so far with Brann as a healer, I have not tried to solo higher levels.