Thunderburst Mine in Dungeons & Dragons 5e

KibblesTasty Homebrew

Thunderburst Mine

Adventuring Gear

Uncommon

This magical trap is infused with explosive magic. As an action, you can set this item to detonate when someone comes within 5 feet of it, or by a verbal command using your reaction (one or more mines can be detonated). When the mine detonates, each creature in a 10-foot radius sphere centered on the item must make a DC 14 Constitution saving throw. A creature takes 3d8 thunder damage on a failed save, or half as much damage on a successful one. If a creature is in the area of effect of more than one thunderburst mine during a turn, they take half damage from any subsequent effects of the mines. A magical mine must be set 5 feet or more from another mine, and cannot be moved once placed; any attempt to move it results in it detonating unless the creature that set it disarms it with an action.

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