The cornerstone for drawing energy from the Elemental Realms was usually a high-energy Magic Core from a magical beast of the corresponding element, or another high-energy Magic Item.
Ice Element was a variant of Water Element. The first-tier Cold-Horned Deer Magic Core in Medivh's possession could serve as a Water Element foundation.
For a Wind Element foundation, he could use the second-tier wind-type magical beast Magic Core obtained through the drive-the-tiger-to-swallow-the-wolf plan.
For Earth Element and Fire Element foundations, he could use the magical metals mined from the underground caves.
That way, Medivh could just barely cobble together a set of magical materials for drawing energy from the Elemental Realms.
It was obvious at a glance that this makeshift set of foundations would work poorly.
Gathering magical materials for four elemental foundations was only the first step in building an Elemental Energy Pool. The difficult part was balancing the elemental energy drawn from the Four Elemental Realms.
If the energy couldn't be balanced, the Elemental Energy Pool would become a magic bomb and explode with a bang.
It was easy to imagine how difficult it would be to balance the elemental energy with this makeshift set of foundations.
Besides, he only had one set of these makeshift foundations, which fell far short of Medivh's expectations. He wanted to turn every High Tower Castle in Kurd City into a Mage Tower.
One Mage Tower offered only limited security. Only a whole cluster of Mage Towers would let him sleep soundly.
"I think I've found better Elemental Pedestals. Sorry for the trouble, all four of you."
Medivh pondered for a while, then inspiration struck. He called over four exceptional Green Bone Skeleton Mages.
The four exceptional Green Bone Skeleton Mages had been resurrected in the same batch. They had died on the