Talk:Holy Night Dinner/@comment-2A02:C7D:94DF:8B00:B464:B016:95B7:612A-20170921105029/@comment-32846243-20171011083705

From what I remember it's a bit like this

take JA as your damage dealer and 2 Merlin as buffers. 2 Merlin use atk up and Buster up => 40% atk up and 100% buster up (100% buster up = 2 times of buster card's performance)

call JA's NP damage before buffs as Xo, after buffs as X, we'll have her NP without the CE equipped like this:

X = Xo*1.4*2 = 2.8Xo

Golden Sumo Wrestling increases atk by 15%, so 40%+15% = 55% atk increase (1.55)

=> X = Xo*1.55*2 = 3.1Xo

Holy Night Dinner increases her NP's damage by 15% (1.15)

=>  X = Xo*1.4*2*1.15 = 3.22Xo

Therefore if you're planning on doing NP spamming, it's better to equip yourself with a mix of both NP damage increase and Card's performance or attack increase, rather than just solely atk increase.

Correct me if I'm wrong.