Asteroid Cluster (Mega)

You create a cluster of asteroids that fills a 2,000-foot cube. Each ship and mega creature is slowed in this area; every foot of movement in that space costs one extra foot. Additionally, any mega creature or ship inside the cluster that didn't take Evasive Maneuvers takes 2d8 mega bludgeoning damage at the beginning of its turn.

If an attack is made through the cluster, the target is treated as having half cover.

When you cast this spell using a spell slot of 3rd level or higher, the size of the cube increases by 500 feet and the damage increases by 1d8 mega points for each slot level above 2nd.