Snowy Coat 2014

This spell makes a slight alteration to a target creature’s appearance that gives it advantage on Dexterity (Stealth) checks to hide in snowy terrain. In addition, the target can use a bonus action to make itself invisible in snowy terrain for 1 minute. The spell ends at the end of the minute or when the creature attacks or casts a spell.

When you cast this spell using a spell slot of 2nd level or higher, you can target one additional creature for each slot level above 1st.