Long planeswalkersona lore
Because of course something as rare as a planeswalker spark would be considered an exploitable resource, one reserved for "the elite".
Still working on a name but I'd want folks of all mana colors in this group, depending on whom they consider "of merit".
☀️White: the noblest.
💧Blue: the smartest.
💀Black: the most ambitious.
🔥Red: the most passionate.
🌳Green: the strongest.
♾Colorless: the richest.
Long planeswalkersona lore
So naturally they'd consider the idea of a lowly goblin possessing a spark as a waste of a precious resource. One that would be better off in someone worthy like the multiplanar fantasy equivalent of Elon Musk.