Yeah, damage is based off of all your cards together. Wish i had known that earlier, kept trying to only up some specific cards before the event started. Thankfully that meant i had a ton of wild cards, though, so i got my SED up by about 40k. Also, the SR cards give 1.7 times their SED when it comes to attacking guards.

So far i haven't seen a single event card apart from Runa Kamiwano from the elite guard explore, so i guess they're extremely rare. I do wonder about Nami Wakabayashi, though. Is she a "get anytime just be lucky" card or specific to the event?

Also, seems a lot of people do not play the event a lot. I went from 900ish rank to 250ish just from playing today. Not really aiming to get a good rank, just trying to get support on as many guards as possible for the defeat rewards.

Edit: I did the big thing, i fed the squirrel 6 R tickets and an Ex wild, let's hope this gives me the damn SR card...

Edit2: PPS stopped working for me just now, anyone else? I guess they might be starting those updates they mentioned in the news? Guess it's a good time to head to bed.