A guildmate asked me for help--he was in a PUG for heroic Mana-Tombs, and they needed more DPS for the last boss. I wasn't sure that I could provide sufficient DPS with a resto-specced druid, so I brought Mazumok instead.
It was a somewhat tricky fight, but we handled it on the second try. I was working on keeping the Ethereal Beacons suppressed; I was taken by surprise when the boss died.
In addition to getting Maz's first Badge of Justice, Maz won the drop for the Primal Nether. This meant that Maz finally had the two Primal Nethers he needed to make his Ebon Netherscale Breastplate.
So I farmed for the materials over the weekend. Extensively. I made a typical Ralph error: I farmed so eagerly for the materials that by the time I made the breastplate late on Saturday night, I was too tired to really enjoy it.
But now I have a new breastplate. Woot. I should try to get Maz into even more heroic instances.