Poison and Steel-
type Pok--mon are immune to being
poisoned, making it the only non-volatile status condition to be ineffective against more than one
type; however,
Poison-
type and Steel-
type Pok--mon
can be
poisoned by Pok--mon with Corrosion, and in Generation II, Steel-
type Pok--mon
can be
poisoned by Twineedle.
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