Electromagnetic Field

Choose up to 3 small or smaller metal objects (such as a sword or a ring of keys) in a 30 foot radius of you.  Without changing in elevation, those objects begin floating towards you at a speed of 30 feet, falling to the ground at your feet.  Any creature holding one of these objects must succeed on a strength saving throw to maintain its hold on the object.  If an object is attached to another object or a wall, the object will break free if your spell save DC is higher than the DC to break the type of material the object is attached to.  Otherwise, the object remains attached.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the number of objects that can be selected increases by 1 for each slot level above 3rd.