Bilious Shell

Bilious Shell -1 SAN creates a sphere half above ground/water, half below.
Cannot be broken – leomunds tiny hut.

Inside 3 rounds pass if the caster makes a Constitution Save DC 18
Outside, 1 round passes; every creature in 30′ must make a Constitution Save (spell DC or DC 15 if item) or
20′ outside the sphere = aura of https://dnd5e.wikidot.com/spell:stinking-cloud