Oil Slick
Tech power · Level 1
power-typeTechlevel1concentration
Tweaked from 5eYou already know this as 5e Grease — It's Grease — same 10-foot square of difficult terrain that knocks creatures prone on a failed Dex save — but with a twist: the oil is flammable, so exposing it to fire turns it into a 3d6 burning hazard. ✨
Cover a 10-foot square in slick oil: creatures entering save or fall prone; igniting it deals 3d6 fire damage.
ControlDamage
●●○breadth · strong with fire combo
TargetingArea
Use whenenemies need to cross a chokepoint or you can follow up with fire
ScalingFlat — no higher-slot scaling.
!Concentration is not required but the 1-minute duration means a lucky fire source turns it lethal — coordinate with teammates.
control-conditionarea-denialfire
Pairs witha fire-damage ally or power · chokepoint positioning · Burst of Flame follow-up
You cover the ground in a 10-foot square within range in oil. For the duration, it is difficult terrain.
When the oil 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.
The oil is flammable. Any 5 foot square of the oil exposed to fire burns away in one round. Each creature who enters the fire or starts it turn there must make a Dexterity saving throw, taking 3d6 fire damage on a failed save, or half as much on a successful one. The fire ignites any flammable objects in the area that aren't being worn or carried.
- Casting Period
- 1 action
- Range
- 60 feet
- Duration
- 1 minute
- Concentration
- No