Wayward shards

1st-level conjuration

Casting time: 1 action
Range: 60ft; 15ft radius
Components: V,S,M (a shard of glass)
Duration: up to 1 minute

Shards of glass and sharp mineral cover the ground in a 15-ft radius circle centered on a point within range. A creature can move at full speed through the terrain, but they will take 1 point of piercing damage for every square (5ft) they move for the duration of the spell. Damage can be avoided by stepping carefully through the shards; meaning half-movement.

Casting this spell at a higher level will increase the radius of the effected area by 5 ft.