Cone of Compression

As you close your extended hand into a fist, the space in front of you folds in on itself. Anything in a 20ft cone is pulled into a singular point in your palm, compressing into a black marble of extremely dense matter. Any loose objects or creatures smaller than medium must make a DEX saving throw. On fall, they are pulled into the sphere and are killed instantly. On success, they manage to flee the area of effect, but are still pulled 10ft closer to the caster. Any creature medium or larger takes 1d12 force damage and is pulled 10ft closer to the caster.