3-level Necromancy
When you cast steal warmth after taking cold damage,
you can select a living creature within 5 feet of you.
That creature takes the cold damage instead, or half
damage with a successful Constitution saving throw.
You regain hit points equal to the amount of cold
damage taken by the target.
At higher levels: When you cast this spell using
a spell slot of 4th level or higher, the distance to the
target you can affect with this spell increases by 5 feet
for each slot level above 3rd.