A'ight, finally did it.
and I only had to use two potions, as opposed to the 4 I had.
I brought along my protection-only dragon, with Deathknight. Killed off Sporca first, and then proceeded to switch to healing mode as opposed to Damage mode for the rest of the time. My Dragon was a real bro, and kept on increasing the effects of healing, or outright healing my mana and health. I just gradually hammered him down with my attacks/Dark Rite while my Dragon healed me, or assisted in it.
Gear I used, and level:
Cape: Atrea Dream Wings VIII
Ring: Unhallowed Deathknight Circlet
Helmet: Fierce Dragonlord Helm (Level 72, needed the all resistance)
Necklace: Zeclem's Heirloom (Level 80)
Belt: Silver Links
Trinket: Pirate's Booty (Yeah, I know)
What I learned from this: The Meowphant Mettle belt that I got as a reward was a huge waste of time