Artifact Weapons locked in a slot for the whole expansion, one less thing to grind, not to mention being the most important slot, with great art to boot, mostly unmatched to this day, which is why Mage Tower appearances are such a heated debate.

AP/AK was pretty much horizontal progression, which we sorely lacked in WoW since… forever.

PvP templates made me not have to worry about gearing impacting my pvp performance.

RNG legendaries and Titanforging ensured all content could give me a random boost, making every activity potentially worthwhile.