Slick grease covers the ground in a 10-foot square centered on a point within range and turns it into difficult terrain for the duration.<br /> &nbsp;&nbsp; &nbsp;When the grease appears, each creature standing in its area must succeed on a Dexterity saving throw or fall prone. A creature that enters the area or ends its turn there must also succeed on a Dexterity saving throw or fall prone.

(enter in keywords and delimit them by space, IE, "fire acid". Not all spells need keywords, limit keywords to effects/realm of spell)