Did I miss the part where they explained what the thing floating behind Ionian women was?
Like, old Irelia used to have it, now Karma is the only one with it.
What is it? What does it represent? How do you get it? At this rate, will it be removed?
Mantle of Decorum seem more like the house sigils now. Except for Karma which still has a pre-retcon model update.
They are inspired by the halo-styled backs that Asian deities usually have, its something quite popular
https://pm1.narvii.com/6278/20465a42b319b7492b0acc367a2eeaa507cf891f_hq.jpg
http://static.tvtropes.org/pmwiki/pub/images/s_Wrath_Olga_9679.png
Not to my knowledge, but since Ionia has drawn lots of inspiration from Asia I can imagine them being like flying swords or other immortal treasures.
The new Irelia doesn't seem to have that anymore since it does not fit into her lore, but she may "reconnect" (not really) the shards in order to surf on them like on a flying sword.
Karma on the other hand...she is just a whole different case of being something that is always reincarnated and worshipped. Hers may be part of something that belongs to Karma herself, and not the girl she currently inhabits or even Ionia.
Hope I could help. :)
Mantle of Decorum
