The effect lasts until the permanent event is discarded as normal.Konrad Klar wrote: ↑Sat Oct 26, 2019 6:50 amThanks.CDavis7M wrote: ↑Fri Oct 25, 2019 8:04 pm "Palantíri", plural of Palantír.
The expression "for Palantíri" means "for each Palantír." This establishes a passive condition like many other cards using "each/all" of something. The corruption point modification is triggered when a Palantír is brought into play.
How long the modification persists?
As far I know companies returned to a site of origin in result of returning action from Snowstorm are not moved back on their route when Snowstorm leaves active play.
Site cards tapped in result the action from Long Winter do not untap when Long Winter leaves active play.
Why is cancellation of Long Winter different? Card position is not an attribute. The ICE Digests describe this but the rules don't.
It's easy to revert to a printed attribute but potentially impossible to rewind game time.