I was fortunate enough to get a https://classic.wowhead.com/item=19130/cold-snap from Azuregos. When paired with https://classic.wowhead.com/spell=6085/wand-specialization it did some great damage and worked as a supplement to damage when I ran low on mana. It was also a kick to auto wand people to death in PvP.
Anyone else combine unusual or fantastic items with uncommon or specific talents for an interesting outcome?
Not anything huge, but in a similar vein to yours, there was a super powerful wand in either AQ40 or Naxx that had exceptionally high dps. A disc/holy priest with Wand specialization (which is more powerful than the mage one) would just bubble up and auto wand people to death to pretty high effect.
I believe it was usually https://classicdb.ch/?item=23009 because it dropped off of Razuvious, and any stronger wands dropped off Patchwerk, which was much harder to kill, and Kel'thuzad, which no one killed.
There also is the https://classicdb.ch/?item=19367 from BWL and the https://classicdb.ch/?item=21603 that is also quite strong.
Edit: the reason I use this database and not Wowhead, where the links actually work, is that the wands don't have the damage/dps on them on Wowhead right now. So yeah. Hard to talk about it without the numbers.