Started playing on Nostalrius a Warrior, because I played on in "original" Vanilla.
Back then I had BRE and it was amazing. I played Arms in BGs (Rank#10 with Warr, Rank#11 with Alt-Hunter)..
This weapon made it possible to one-hit easily mages for example.
This buff (on you, not for the group!) ignored 2100 armor at 3 stacks, so basically a mage was "naked" and the buff (for me, debuff for opponent) got into "minus"-armor for the enemy. Something like that.
But I had a lot of onehits (1 Mortal Strike crit with 3 Stacks = kill, or nearly kill of a cloth-wearer except Warlock).
I played with a Shaman behind my back (WF, loved it!), HoJ and Sword-Specc = So i "onehitted" a lot of people with this sword back then. Many proccs for a bonus hit were just awesome.
If you can, get that sword and have a lot of fun
I need to level now with so little time comparing 10 years ago..
(lvl18, again Warrior!)