PSA: STOP FOCUSING THE CRYSTALS USING YOUR ATTACKS! Even in 3BP that shit is chump change. Despite the constant NP charging, make no mistake: Raikou is and will always be the real threat in this battle, unlike the previous raids.
However, do use all sorts of NPs as possible. Running Dantes, Arturia and a support Jeanne Alter, I'm able to take out both the crystals with Chateau d'If and Excalibur, while dealing tons of damage to Raikou with La Grondement du Haine.
So I repeat:
focus Raikou, and
leave the crystals to AoE NPs.
Zolnir wrote...
... *rests head on Berserker breasts*
She's a yandere MILF who won't let you even look at other girls and even thinks there's no difference between a 'son' and a 'lover'. Enjoy your prison in the form of delusion drawn by RAITA. :y