Deep Magic Volume 2 (p.223)
Slime Guard
0-level (Cantrip) Abjuration
Casting Time: 1 bonus action
Range/Area: Self
Components: Verbal
Duration: 1 round
Damage/Effect: Buff
You coat yourself in a thick, magical slime. You have advantage on the next ability check you make to escape a grapple before the start of your next turn.
Available for: Bard, Sorcerer, Warlock, Wizard