World of Warcraft: Wrath of the Lich King

I played a very small amount of this. Basically I played a DK when they added them, leveled them all the way up to the content for WOTLK and then quit. And let me tell you, it was a BLAST. DK was the first prestige class and they were SO overpowered. I played an Unholy DK because I looked at the talents and was like "This looks broken" and I was right. I would out DPS every class in most dungeons because I was tanky as fuck, I would hit like a truck, AND I laid down constant AOE DPS and IIRC I had a pet. Like DK just ripped all the coolest shit from each class and did it better.

But yeah I literally did maybe a couple levels of content of WOTLK, maybe a single dungeon and then bailed. I was joining too late to the party and was busy with other stuff (I think this was during college).