Magic Mine

Evocation cantrip

Casting Time:1 action

Range:30 feet

Components:V, M (a pebble with multiple layers of strata)

Duration:Concentration, up to 1 minute

Classes: Wizard, warlock

You create a magical trap that detonates when a creature steps near it. Choose an unoccupied space you can see within range to place the mine. The mine requires a successful Wisdom (Perception) check against your spell save DC to detect. The mine triggers when a Small, Medium, or Large creature enters the space where the mine was placed. That creature must succeed on a Dexterity saving throw or take 1d4 force damage and be knocked prone. Either way, the trap dissipates once triggered.

If you lose concentration, you may choose to either immediately detonate any existing mines or let them dissipate harmlessly.

The spell creates additional mines when you reach higher levels: one additional mine at 5th level, two additional mines at 11th level, and three additional mines at 17th level. You can place the mines in the same space or in different spaces within range. If a creature triggers multiple mines, they make a single saving throw against all of them.