Domain Expansion

Domain Expansion is a spell of extraordinary arcane mastery, allowing the caster to create a mystical realm within a chosen area. When invoked, the caster becomes the ruler of this supernatural domain, where they can manipulate the fundamental laws of reality itself. As the incantation takes hold, the surroundings undergo a profound transformation. Gravity distorts, the terrain changes, and visibility warps, giving birth to an entirely new realm. Within this crafted domain, the caster becomes the master of all they survey.

All saving throws for each domain must be made each round

1. Frozen Realm:

   • Description: This domain plunges the area into an eternal winter. Icy winds howl, and frost covers the terrain. Everything moves slowly, and those inside suffer from extreme cold.
   • Effects: Within this frozen realm, creatures have to make Constitution saving throws (DC 16) to resist taking 1d6 cold damage, and movement slowed by half 

2. Inferno's Embrace:

   • Description: The surroundings burst into never-ending flames. The air shimmers with heat, and molten rock flows like rivers. Everything within the domain feels the oppressive heat.
   • Effects: In this fiery domain, creatures must make Dexterity saving throws (DC 16) to avoid taking 1d8 fire damage and being ignited by the flames.

3. Nightmare's Dream:

   • Description: A perpetual twilight bathes the area, and shadows grow deeper and more mysterious. The boundary between the material plane and the Shadowfell blurs.
   • Effects: In this eerie twilight, creatures must make Wisdom saving throws (DC 16) to resist being frightened and taking 1d8 psychic damage.

4. Carnage-Laden Wilds:

   • Description: The area becomes an overgrown, primeval forest teeming with massive trees, tangled vines, and exotic creatures. It feels like a living, breathing jungle.
   • Effects: The environment becomes difficult terrain, and creatures must make Strength saving throws (DC 15) to resist being restrained by the encroaching vegetation. On failure, the creature is unable to move until they pass the saving throw.

5. Tempestuous Havoc:

   • Description: Thunder and lightning roar through the domain, and dark clouds blanket the sky. Rain and lightning strikes are constant, making visibility difficult.
   • Effects: In this domain of tempestuous havoc, creatures must make Dexterity saving throws (DC 17) to avoid taking 1d8 lightning damage and to prevent being deafened by the constant thunder.

6. Cole's Cavern:

   • Description: The area is transformed into a crystalline wonderland with towering spires of precious gems. The terrain sparkles with enchantment, but traversing it is challenging.
   • Effects: Creatures must make Dexterity saving throws (DC 16) to avoid taking 1d6 piercing damage and falling prone on the sharp crystal ground. They are also affected by a curse (blindness, charmed, incapacitated, poisoned, unconscious) for 1 round.

7. Silent Abyss:

   • Description: An eerie silence fills the domain, drowning out all sounds. No words can be spoken, and even magical sounds are muted.
   • Effects: All spells with verbal components automatically fail, and creatures must make Wisdom saving throws (DC 17) to resist the oppressive silence.

8. Advantageous Domain:

   • Description: Within this mystical domain, those deemed allies of the caster enjoy inherent advantages, granting them increased odds of success in their actions, including skill checks and attacks.
   • Effects: All hostile creatures making attacks against you are at a disadvantage. All actions that require you to make a saving throw are lowered by 3, and you are at an advantage against all hostiles. A critical success can now be gained by rolling a 19 or 20 on a d20.
9. Allied Sanctuary:

   • Description: This domain manifests as a peaceful and tranquil sanctuary, bathed in a gentle, soothing light. It emanates an aura of safety and support.

   • Effects: All creatures within this domain recover 2d6 hit points at the start of their turn as well as getting a +3 to their AC. Additionally, they gain advantage on all saving throws and have resistance to non-magical damage.