Once completed, this spell imbues a 100-foot cube centered on the material component with transmutative power, allowing you to create effects similar to a powerful monster in its lair. The effects of this spell last until you cast it again, the material component is destroyed, or you perform a 10-minute ritual to end it.
The material component of this spell functions as the "heart" of your domain. It has HP equal to half of your maximum and resistance to all damage except force. If the heart is reduced to 0 HP, it is destroyed and the effects of the spell end in 1d4 rounds.
While in the area of this spell, you gain the following abilities:
Watching Walls. You know the location of all creatures within your domain and cannot be surprised. If any of them are hidden or disguised by an illusion, you see through it. Additionally, you may take an action to see and hear any such creature. While you do so, you are blinded and deafened in regard to your physical surroundings.
Lair's Warding. You and your allies gain advantage on Strength, Dexterity, and Constitution saving throws as your domain does all it can to shield you. If you are hit by an attack, you may use your reaction to add your spellcasting ability modifier to your AC until the start of your next turn.
Poltergeist. As a bonus action, you may launch any item within your domain that you can see towards an enemy. Make a ranged spell attack. On a hit, you deal 3d8 bludgeoning damage to the target.
Instant Basement. As a bonus action, you may turn a 10-foot square of ground into a pit 30 feet deep. Any creatures within this area must make a Dexterity saving throw or fall to the bottom, taking 2d6 bludgeoning damage on impact. On a successful saving throw, they move to the nearest unaffected empty space. You may close this pit as another bonus action, causing any creature in it to reappear in their original square.
* - (a heart-shaped totem worth at least 2,000 GP, which the spell consumes.)