about treasure dungeon?

[goflvhxj963]

I just need reaking 4 more tickets to get full daredevil faire costume which requires 255 tickets and I heard about treasure dungeon giving 4 tickets each run so I thought about doing it but it seems to require memory fragments as a key. Where do they drop these?

[ceruulean]

Run dailies and get bunny, or run twisted territory and open chests