You gain the following benefits.

Ability Score Increase: Increase your Constitution, Intelligence, Wisdom or Charisma score by 1, to a maximum of 20.

Rime Touch: Once per turn, when you hit a creature with an attack that deals cold damage, or when a creature fails a saving throw against one of your spells that deals cold damage, you can reduce the target’s speed by 10 feet until the end of its next turn.

Winter’s Fury: You have Advantage on attack rolls against creatures that have their speed currently reduced.