[The Four-Color Elemental Heart]should be a well-known term for any puppet master alchemist.
This treasure is said to be a product of goblin civilization, symbolizing the pinnacle of puppet energy core craftsmanship.
Even now.
One of the three mainstream puppet energy core design systems on the market, the "Elemental Core," is derived from this set of goblin technology.
It is the same for the Puppeteer lineage of Su Lun!
His current rune puppets and the energy cores of the alchemical gargoyles all use various functionalized Elemental Hearts.
But these are in fact incomplete versions.
Goblin civilization has vanished for countless years, and ancient magicians only found some fragmentary design diagrams in old texts and documents. As a result, today's "Elemental Hearts" usually possess just a single element.
