this event was good for me
as i used a lot of half elixers during first yata garasu, i didn't bother to battle her much, just ragnarok and beginner-ultimate for jewels.
now, during the first ixion event i found ixid blade i a chest, so bought 3 copies in shop to MLB it back then.
and now, i found 2 ixid blades in chest+bought the last copy in shop so have 1 MLB copy and another 1 with 2 stars
also, have a lot of materials in ixion shop as well so next rematch with her should be less work for me :P