Tidecaller's Blessing (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Duration:||Concentration, up to 10 minutes|
You imbue an ally's weapon with strong frost energy. You bless the target, causing their weapon attacks to deal an extra 1d8 cold damage per hit.
At Higher Levels. When you cast this spell using a spell slot of 5 level or higher you can target one more creature per 2 levels above 3rd.