The Dead Lands of Athas
Energy Vortices are living conduits of energy that funnel energies from all four elemental planes onto Athas. It is through these that a Sorcerer Monarch is able to grant spells to their Templars and communicate remotely. Templars make use of a Templar’s Sigil to facilitate their requests, but these in of themselves are not inherently magical, serving only as a tangible focus for their Sorcerer King’s power.
Ancient Elemental Drakes themselves were bound to such energy vortices, and in the Green Age some societies worshiped these creatures in exchange for spellcraft. The ancient Orcish Dynasty was one of those societies, whose caliphs possessed potent elemental spellcraft through pacts with such powerful creatures.