The Hollowed Planet

The center of the planet has been degraded over millenia. Further into the depths it goes. Tunnels rank with fetid air lace the darkness. And on they grow by supernatural means, continuing to twist and writhe and burrow.

The Hollowed Congregation

A festering wound lies underneath the planet. Hollowed and burrowing into its depths is the Coven of the Five Claws.
Deep in the recesses of the earth, there lies an elongated and outstretched crone's hand. The gnarled and rock feature protrudes from the depths. On the night of the congregation, a representative hag from each of the elements stands atop one of five claws. When The Crone Mother calls from the earthen hand, hags begin to compulsorily migrate to her.

Fire Claw: Fire get ready at the mouth of the cave, where the sun shines, and all is under your control.
Earth Hag: Earth Get ready at the bony cave entrance where all is still, what you hold dear is naught but dust.
Water Hag: Water Get ready at the center of a small pool, where water trickles down to bloat your corpse and in despair embrace you.
Airy Claw: Air Get ready in the middle of a field of grasses that keep you hidden, but allow you to spy on the others.
Spirit Claw: Spirit Get ready in the deepest, darkest corner from which it is almost impossible to see and light never enters.
Each hag takes care to be wary of danger from all sides as she prepares for what happens next; a gathering of all hags around a cauldron in an attempt to bestow good fortune upon a single person in need.

The most powerful hag's place is the thumb, the weakest is the pinky. Any hag is welcome to challenge another hag for a claw, but it is rare since hags crave power and only the most powerful sit atop a claw to begin with.
Elemental power ebbs and flows in thirteen year cycles. This is apparent as the hags will cycle between claws. The hag that was the most powerful will recede the furthest until her element cycles through again.
This creates interesting political options, as a hag who has momentary supremacy might not exercise her full power out of fear for what might happen when her element recedes. Rather, the hag will pursue other avenues in times of feast to secure her power (and survival) in times of famine.

The Coven of the Five Claws

The Coven of the five claws is a unity of hags. It lies deep underneath the surface of the planet. The hags that comprise it come from the five terrain types found on the planet. There are five elemental types a hag may belong to. These elements are tied to the land, and the hags twist them to evil.
While a hag may know magic in several of these areas, the most powerful of hags choose one element in which they specialize.
Once every thirteen years, there is a coven union, known as the Hollowed Congregation. Hags from all over the planet come together to practice wickedness in all its forms.

Mountain Water Swamp Plains Forest