Hahaha I remember priests before they nerfed the +heal effects and downranking. I watched a Priest (Eloderung) on Illidan with full Naxx gear tank pretty much everyone with renew and wand them down. Totally broken but hilarious at the same time.I used to kill everything, person, child, and animal on my Warlock in valilla WoW. The only guild I had problems with was Death and Taxes. I had a priest from that guild wand me to death with a Naxxaramas wand for the lulz. Excluding them 1 vs 1, 2 vs 1, and even 3 vs 1 sometimes I won.
Succubus with keybindings was nearly impossible to beat. Later on I migrated to destruction because they said it was impossible to do on the WoW forums and was just as OP as we had the "machine gun imp". My imp solo'd a druid in Arathi Basin one day. That was a week before we got nerfed into the ground for TBC...