Damage all Units on a row by half their Power (rounding down and ignoring Armor).
Added to Gwent
[Oct 25, 2016] In Closed Beta's initial build.
- See this subject on The Witcher wiki: Merigold's Hailstorm
- Gwent Update: Feb 20, 2017 Patch: Merigold's Hailstorm, Skellige Storm and White Frost now let you choose one weather effect.