Ramazan i think for future guide u may want to add what the Eidolon aura do at each uncap level so player can plan how many copy they really need.

example for Apocalypes
☆☆☆☆ - 30% Dark ATK, 30% Fire ATK
★☆☆☆ - 35% Dark ATK, 30% Fire ATK
★★☆☆ - 35% Dark ATK, 35% Fire ATK
★★★☆ - 40% Dark ATK, 35% Fire ATK
★★★★ - 40% Dark ATK, 40% Fire ATK

since Eidolon has two function, for Aura, stats and active ability in main slot but just stat stick and active ability in sub slot, if player want best 40% Aura for playing Dark, u only need 4 copy, not MLB. the MLB benefit for dark is only about ~220ATK extra vs ★★★☆

or, if need to budget, Dark player just getting 2 copy will result Eidolon that has 35% Dark ATK aura, which is already very good. Stats not so great, but can always farm other summon later on to increase stats in sub slot. the more important thing is 35% bonus multiplier.

the benefit for the SSR weapon exchange is more complicated and depend on existing weapon grid. i think it still best to leave uncombined to stack the ATK weapon skill bonus.

- - - Updated - - -

ok, i looked further into original event schedule. i am very convinced our event is following original ver. for difficulty and droprate, not revival

funny enough, the best information isn't from jp wiki because they updated the event page for revival. the best info instead came from english wiki because the wiki editor disappeared and never updated it.

example - http://kamihime-project.wikia.com/wi..._16_-_6_May_16

it seem droprate for exchange mat is much, much better from 3rd event. thus, although i want to build dark team, i won't spend any more pot on this event. i will just use natural regen. if SSR drop, cool. if not, doesn't matter~. better to save pot now.