Spike Switch

Info
The Spike Switch is a rare trap unlocked in League 1. It costs 3 points. It deals damage upon entering the room from either the left or right.

Strategies
You are able to see the Spike Switch from both the rooms left and right of it due to a "design flaw". Use this to your advantage by dodging them, Beware though, because some smart players set up their manor to take advantage of you dodging it.