As for the prize of collecting all shards, it is a shiny Necrozma holding a Black Prism. It will be set at level 5 and becomes obtainable at the start of .Karma

Mr. Luck delivers it as a package to your room in Rhodea's apartment

(3)

(2)

Other sprites with her name listed are called "VMeliaRed" though some of these consist of M2 sprites

Official Art created by the amazing @honnojis.art ! This art was created for the first popularity poll!

The ??? type existed through gens 2-4 and is neutrally effective against every type and vice versa. On top of that, Silvally also has a crest that is also still unobtainable. [2/2]

Small tidbit, this fight is winnable. However it does take a certain amount of finnesse, especially since it obtains Mold Breaker partway through the battle.