Bottomless swamp

When you cast this spell you create a marshland terrain filled with acidic liquid in a 40ft diameter, when creature first start it turn or ends it turn in the marshland it must make a constitution saving throw or it takes 10d8 acid damage or half as much on a successful saving throw.

The marshland count as difficult terrain, creature who do not walk or touch the ground are not affected by this spell.

When a creature dies in the marshland it will sink into the acidic liquid and all it items it was wearing will be destroyed except for magical items.

At Higher Levels. When you cast this spell using a spell slot of 9th-level, the damage increase with 2d8 acid damage