1-level Conjuration
You create a cloud of poisonous smoke that lasts for the duration. A creature that ends its turn completely within the cloud must succeed on a Constitution saving throw or take 1d10 poison damage and become stunned until the start of its next turn.
A moderate wind (at least 10 miles per hour) disperses the cloud after 4 rounds. A strong wind (at least 20 miles per hour) disperses the cloud after 1 round.
When you cast this spell using a spell slot of 2 or higher, the damage increases by 1d10 for each slot level above 1st.