Deep Smog

You create a dark force 30-foot-radius sphere of parasitic smog centered around you. The sphere spreads around corners, and its area is heavily obscured. It lasts for the duration or until it's dispelled. Those with dark vision will find it difficult to see past this dark smog (10 feet), and any light cast within the vicinity only shines for 15 feet.

Within the smog, small parasitic bugs begin to appear and fly around, and those considered the caster's enemy have to make a Wisdom saving throw equal to the caster's spell save DC.

• If they fail, the bugs begin to swarm around the individual dealing 2d6 damage.
• If they succeed, they take half of 2d6.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6. Level 6 spell slot or higher; those with dark vision can't see within the smog at all, and any light cast flickers and dies. If the individual fails with a natural 1, they become frightened to move within the smog for 1d4 rounds. Level 10 or higher when falling wisdom saves with a natural one within the smog; flip a coin to see if they get heads or tails.

• Heads: They become frightened to move within the smog for 1d4 rounds.
• Tails: They gain short-term madness for 1d4 rounds.