You extend your hand, forming a dark ball of oil at a point in range, before causing it to explode outwards as you clench your fist.

All creatures within range must make a Dexterity saving throw, potentially becoming

Oiled

Blinded

Critical Success (+10). The target is unaffected.
Success. The target takes a bonus +5 damage if it takes Fire damage before the end of their next turn.
Failure. The target becomes Oiled for 1 minute and Blinded until the end of their next turn.
Critical Failure (–10). As failure, except the creature remains Blinded while they are Oiled.