Oil of Slipperiness

This sticky black unguent is thick and heavy in the container, but it flows quickly when poured.
The oil can cover a Medium or smaller creature, along with the equipment it's wearing and carrying (one additional vial is required for each size category above Medium). Applying the oil takes . The affected creature then gains the effect of a Freedom of Movement spell for .
Alternatively, the oil can be poured on the ground as an action, where it covers a 10‑foot square, duplicating the effect of the Grease spell in that area for 8 hours.