Phase 1: Pure tank and spank
Head pop off, kill head.

Phase 2: Tank and spank with conflag added. Nothing big, heal thru it.
head pop off, kill head.

Phase 3: Tank & spank with conflag and mini pumpkin (chain lightning will one shot them).

Profit.
Seems that only rings drop off the boss.

The helm/sword as far as i can tell only drops from the bag that you get for doing it first time.
Though I only got the sword on a shaman so far (DE'able able btw, rings are not however).