Salt Cure does 1/4 damage to Water and Steel types per turn, but I was wondering what happens if a Water/Steel is hit with Salt Cure. Does it stay at 1/4, or go to 1/2?
If a Steel and/or Water type is affected by Salt Cure, the amount of damage per turn is ¼ of its maximum HP.
Source
The quote says "and/or" indicating the 1/4 damage is the same for water, steel, and water/steel types.