4th-level Spell: Bone Garden

Whispering (Transmutation)

Ethereal, monstrous spikes of bone lance upwards from the ground in all directions around you, impaling every creature within 20 feet of you. Each creature in the area must make a Dexterity saving throw. On a failure, it takes 6d8 piercing damage and its speed drops to 0 until the end of its next turn. On a success, it takes half as much damage and its speed is not reduced.
Until the start of your next turn, when a creature moves into or within the area, it takes 1d8 piercing damage for every 5 feet it travels. At the start of your next turn, the spikes crumble away into dust.

• At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the initial damage increases by 1d8 for each spell slot level above 4th.

Source: KCC (Iron Garden)

• Casting Time: 1 action
• Range: Self (20-foot radius)
• Components: V, S
• Duration: Instantaneous
• Ritual: No