Spell Level: 1
Spell School: Conjuration
Casting Time: 1 Action
Components: V, S, M (a bit of pork rind or butter)
Range: 60 ft.
Area: 10 ft. Square
Duration: Time
Conditions/Effects: Prone, Control
Saving Throw: Dexterity
Ritual: No
Scaling: None
Link: Link to source
Nonflammable grease covers the ground in a 10-foot square centered on a point within range and turns it into Difficult Terrain for the duration.
When the grease appears, each creature standing in its area must succeed on a Dexterity saving throw or have the Prone condition. A creature that enters the area or ends its turn there must also succeed on that save or fall Prone.