You gain resistance to cold damage and can survive without penalty in cold environments 

You gain Darkvision 120 feet

You gain the Ray of Frost and Shape Water Cantrips

additionally at 3rd level you gain the Ice Knife spells which can be cast 1/Long rest at level 1 without a spell slot or using any 1st level or higher spell slot as it is always a known spell on your spell list

Gain Proficiency in one of the following

Brewers Kit, Smith Tools, Mason’s Tools

You gain the ability to shape ice and infuse it with your innate frost magic to create a lasting item that will not melt so long as your bound to it. Such items must be simple singular objects or a cluster of smaller objects. Examples include any single weapon without moving parts (ie: no chains strings or mechanisms), shields, bundle of 10 arrows, helms, bracers and set of small tools such as with a set of thieves tools. You can bind and maintain a number of such items equal to one plus your proficiency bonus at a time. Creating any beyond that will destroy the oldest existing one. 

this takes either ten minutes to summon the materials from your inner frost soul or an action if a source of water sufficient is at hand