New Spell: Pass through Solid

5th-level transmutation
Casting Time: 1 Action
Range: Touch
Components: V, S, M (a drop of water)
Duration: Concentration, up to 1 minute.

Choose one material: dirt, ice, stone/rock, or sand. For the duration, the touched creature can move through such substances at a 15-foot speed. When the spell ends, you are ejected to the nearest unoccupied space. While inside of such substances, you are not able to see or hear.
At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, you can target one additional creature for each spell slot above 5th.