Dungeon Master Guide (Oil of Elemental Invulnerability)[]
This precious substance gives total invulnerability to one type of normal elemental force on the Prime Material Plane: wind storms, fires, earth slides, floods, and so forth. There is a 10% chance that each such flask will also be effective on the appropriate Elemental plane—this allows the protected individual to operate freely and without danger from elemental forces. Attacks by elemental creatures are still effective, but with a -1 penalty per die of damage. A flask contains enough oil to coat one man-sized creature for eight days or eight individuals for one day. The element protected against is determined randomly.
| D4 Roll | Element |
|---|---|
| 1 | Air |
| 2 | Earth |
| 3 | Fire |
| 4 | Water |
Tome of Magic (Oil of Elemental Plane Invulnerability)[]
These precious oils provide total invulnerability against the elemental forces on one inner plane, as well as offering the same protection as the oil of elemental invulnerability. Any character covered in the oil suffers no ill effects from the harsh environments of the elemental, para-elemental, and quasi-elemental planes. Attacks by elemental creatures are effective, but with a -1 penalty per die of damage.
A flask of oil contains enough oil to coat one man-sized creature six times or six individuals once. An application is effective for 24 hours.
The protection the oil offers is determined randomly with two die rolls. First, 1d4 is rolled to select a table below: 1=Table A, 2=Table B, 3=Table C, 4=Table D. Second, 1d4 is rolled on that table.
| Table A | Table B | ||
|---|---|---|---|
| D4 Roll | Plane | D4 Roll | Plane |
| 1 | Air | 1 | Smoke |
| 2 | Water | 2 | Ice |
| 3 | Earth | 3 | Ooze |
| 4 | Fire | 4 | Magma |
| Table C | Table D | ||
| D4 Roll | Plane | D4 Roll | Plane |
| 1 | Lightning | 1 | Vacuum |
| 2 | Steam | 2 | Salt |
| 3 | Radiance | 3 | Ash |
| 4 | Minerals | 4 | Dust |
Anyone covered in the oil can see, breathe, and move in the respective plane without difficulty. Just as a character can move through flames or water without difficulty when covered in the proper oil, a character doused in the oil of earth can pass through the stone of the elemental plane of Earth as if it were air.