Merfolk have long been a supported kindred creature type, dating all the way back to Magic s first set Alpha via the O.G
X #141 - Gliscor LV
But for those with a more studious eye, it became clear that Memnarchs much creepier than that, and you needed to be deeply invested in the lore of the original Mirrodin cycle to know that its actually Memnarch on Second Sight as well as Karl Kopinskis From the Vault: Relics Aether Vial, or that the thing on Eyes of the Watcher is in fact our good friend Memnarch and not some other random dude on a purple metal throne
He wore blue pants, brown boots, and didn't have pink accents on his light blue bangs yet
You can Sing and then use those same characters to challenge or quest for more Lore
These are the most valuable cards in the set: Lacey (SIR): 13,000 - 15,000 yen ($83 - $96) Terapagos ex (SIR): 8,000 - 9,000 yen ($51 - 57) Briar (SIR): 4,000 - 5,000 yen ($25 - $32) Lacey (UR): 3,000 - 4,000 yen ($19 - $25) Area Zero Underdepths (HR): 3,000 - 3,500 yen ($19 - $22) Hydrapple ex (SIR): 3,000 - 3,500 yen ($19 - $22) Terapagos ex (HR): 2,500 - 3,000 yen ($16 - $19) Bravery Charm (HR): 2,500 - 3,000 yen ($16 - $19) Galvantula ex (SIR): 2,500 - 3,000 yen ($16 - $19) Dachsbun ex (SIR): 2,000 - 4,000 yen ($13 - $25) Briar (UR): 2,000 - 2,500 yen ($13 - $16) Crispin (UR): 1,000 - 2,000 yen ($6 - $13) The least valuable secret rares are Medicham ex, Orthworm ex, and Kofu