:dnd: Today I learned that I've misunderstood how the spell Thunderwave works since level 1. (We're now level 15.) I would have used it a LOT more if I'd known!
(Thunderwave creates a cube of force originating from the caster. I'd figured that meant I was at the center of the cube - but nope! "You select a cube's point of origin, which lies anywhere on a face of the cubic effect." So I can place the cube anywhere as long as it's touching me at some point.)