Right now we have PvP

Right now we have PvP in our otherwise PvE Timeless Isle. There are also PvP quests to complete for the legendary cloak.

wow items

And we've long had PvP achievements to complete in order to get the meta achievements for holidays. Most recently,

buy wow items

 there was the G.N.E.R.D. Rage achievement for Hallow's End and there's the infamous School of Hard Knocks for Children's Week.