Guild Wars 2

I found that PvE solo noticeably ramped up in difficulty at around Bloodtide Coast on my Engineer. Packs of Risen can be a pain but with proper kiting they aren’t anything too scary.

Saying that I’m not really buying any gear apart from the occasional Karma piece and am relying on drops/ rewards so my gear could be more cutting edge.

I wouldn’t go as far as the Naga being essential to play this class (which clearly isn’t true) but I do find mine very handy. As others have said keybinds are your friends.

Map strafe to A and D, remap autorun from R to anything else (I use *)
Remap F to something else (I use mouse scroll wheel click)

That gives you within easy reach: Q, E, R, F, 1, 2, 3, 4. I then used the Naga side buttons to bind F1, F2, F3, F4 and heal. Works nicely!