After looking at a checklist of all the spells in the game I finally figured out which ones I was missing to get my last remaining achievements in the game. Over the last two days have been grinding a few of them out. This included:
1. Gaining entrance to and going pretty deep into Shulva to get one of the DLC spells I'd missed my first time thru. You may remember this was the most annoying of the DLC areas for me to traverse. Prior knowledge of the area only made it SLIGHTLY less of a pain in the ass to traverse the 2nd time. I swear I'm never going back to those DLC areas again. ESPECIALLY Shulva.
2. Killing the 4 Falconers at the very starting point of the game in Things Betwixt to farm 30 sunlight medals. I would have done this legitimately via offering myself to co-op to kill bosses except that my soul level is so high that there's nobody matchmaking.
3. Going into offline mode and killing a rare spawn "invader" NPC in Belfry Luna 20 times to max out the bell keeper faction.
Those last two things took multiple hours each. Monotonous BULLSHIT, but they're both done. Now the only thing I need to do is play thru NG++ far enough to get to Dranglaic Castle so I can buy the final 3 spells off that merchant dude and I should finally be done.
I can't acknowledge enough how pointless Steam achievements are, but I have this fucking awful compulsion to "complete" DS2 before I play 3. This was a long time coming, but I'm actually going to do it.