Here is another installment of exTRAPaganza, our Thursday over-the-top trap series.
A large metal globe is suspended in mid-air in the middle of the room.
Touching this globe causes multiple arcs of electricity to strike the globe. All targets in the room take heavy electricity damage, with a hard Dexterity saving throw halving the damage. The actual target that touches the globe takes massive damage, and must make a very hard saving throw