Mine, incendiary

Mines can be set to detonate when a creature comes within up to 15 feet of it or paired with a remote detonator. As an action, you can prime and set a mine on a surface you can reach, which arms at the start of your next turn. When detonated, the mine sets the ground in a 15-foot radius ablaze for 1 minute. The fire ignites any flammable objects in the area that aren't being worn or carried.

When a creature enters the fire or starts its turn there, it creature must make a DC 14 Dexterity saving throw. The creature takes 2d8 fire damage on a failed save, or half as much damage on a successful one.