took me awhile to figure out too, i didn't get it til a couple days ago.
lots and lots of stacking ATK debuffs. i brought full break, power breakdown, pentabreak, mug bloodlust, the 5* ATK+MAG dance, an ATK+RES break SB, and Setzer's ATK+MAG+MND break from his LD.
so i had Riku as DPS
Faris...