983650f0__attributes___The_Witcher_Wiki__Ability_name
[Effect] Changes Aard Sign into the freezing Ice Aard, which adds a 20% chance of freezing opponents hit with the Sign. [Means of acquisition] Awarded when visiting a shrine in Chapter 3 outside of Loc Muinne. (after patch 3.3) [Chapter begun] 3 [Ability name] 
Winter's Shroud
Character attributes - The Witcher Wiki
Ability name