Premonition
From Arkham Horror Wiki
Premonition is a spell. It first appeared in the Curse of the Dark Pharaoh expansion.
Card info
Casting Modifier: -1
Sanity Cost: 1
Casting phase: Any
Effect: Cast and exhaust to move one skill slider up to 2 stops.
Hands: 0
Clarification
This spell can be used in the middle of an encounter. In essence, this card could be considered to read "Any Phase: Before making a skill check.."
This spell remains unchanged in The Curse of the Dark Pharaoh (Revised Edition), aside from some minor rewording of the effect.