It seems to me that this proc is pretty singular -- after a little bit of searching, I can't find any other weapons that have anything like it. If you can, let us know in the comments below.
Name: Rod of the Sun King (Wowhead, Thottbot, WowDB)
Type: Epic One-hand Mace
Damage/Speed: 189-352 / 2.70 (100.2 DPS)
- Increases attack power by 52.
- Chance on hit: gain 10 energy or 5 rage. This is the proc (short for procedure, from the programming world, though it's come to mean a number of other things) that really makes this mace stand out as a choice pic for Rogues or DPS Warriors -- the proc rate seems to be around 3 procs per minute, which is a substantial amount of energy and rage coming back to the user.
- Unfortunately, it also seems there's a short cooldown on the proc, which means you can't have a bunch of procs in a row, and get a bunch of free energy or rage back to back. Still, this weapon provides a pretty steady source of extra Warrior/Rogue fuel, and it's exceptional for that reason.
Druids, unfortunately for them, have no use for this weapon, even the bear kinds. Since the proc requires a "chance on hit," and bear Droods don't actually hit anything with their weapon (just their paws), it'll never proc for them. Blizzard might have been a little more giving on that one, but as it is, this weapon doesn't help bears at all.
Getting Rid of It: Sells to vendors for 14g 59s 25c, disenchants into a Void Crystal. There will be other, better weapons you find on your way up the raiding ladder (and while the DPS on this is nice, the high-end Arena gear beats it), but the proc on this weapon is almost enough to keep it anyway.