I cleared this instance with 40k power (give-take) with lightning main wb asuma and danzo. Just in case anyone wants the lineup
Danzo - X - X
WB - Iruka - LM
X - X - X
Talents: 3 2 4 3 2 - Giant Katsuyu
Putting Danzo before WB Asuma allows his chase to go off first, triggering the immobile chase more often. When trying out this instance with Asuma just one position down makes gets him combo-ed and killed by the row below, hence this lineup. Feel free to adjust this lineup accordingly.
Other than that, Round 1 involves interrupting Gakido's mystery to give a shield, as well as using lightning armor. Tendo should be dead by this turn, preferably Gakido as well. Round 2 involves interrupting Ningendo and bringing him really low, as well as killing Gakido if not already done. From then forth, target and kill Shurado and it should be relatively easy once he dies.
One interesting note from me was that I didn't see Jigokudo using his mystery throughout the whole battle, but that might be different for others. Also, feel free to make changes to the lineup (changing LM position with Iruka for him to tank instead of your LM) as well as the target order. I do realize that the guide is most likely not perfect but it was the conditions that I cleared it in. Hope it helps anyone attempting to clear it. ^^