Descripción
You set a magical trap by infusing explosive magic into a jack-o'-lantern. 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). While this spell affects a jack-o'-lantern, the object sheds dim light in a 20-foot cone.
When the jack-o'-lantern explodes, each creature in a 20-foot radius must make a Dexterity saving throw. On a failed save, a creature takes 4d8 fire damage, and it is outlined in warm yellow light. For the next minute, any attack roll against it has advantage if the attacker can see it, and it can't benefit from being invisible (as in the faerie fire spell). An affected creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature succeeds on the initial save, it takes half as much damage and suffers no other effects. If a creature is in the area of effect of more than one jack-o'-burst mine during a turn, it takes half damage from any mines beyond the first.
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 original caster disarms it as an action.