I've got a good stock of glasses, but with such a short event (8 days?!?) we're gonna need glasses is we hope to hit 51k. There phase 1 slayers don't even contribute much. I have both the alpha and beta R and the N card, which is a repeat (boo!), and I'm only getting 2.34 as a bonus. That's a lot, but it still means I have to get something like 16,500 kairos (wtf is a kairo?) when you figure in the 1.2 bonus from the N card next phase. God help us if there isn't a new N card, because then it goes up to 19k.
I realize some players have well over 19k on day 1, but they're in a class that is far and above a lot of F2P players. This event is gonna take hustle and a LOT of it.
EDIT
Is there no SR card in boxes? I just got Chie Ota, and she's R. I'm totally up for an R and a SR in boxes, but if there's no SR in boxes AND the event is only 3 minutes long AND the SR from trinkets is 51 K (an extra thousand) then holy shit this event is going to hit F2P hard. Frankly, it's not exactly easy on paying players, but Jesus H Christ this is going to be rough on F2P unless you grind the fuck out of it.