Your time spent in the Abyss has rendered your body accustomed to its cold and heavy waters, you gazed and it gazed back. You gain the following benefits:

• You gain +1 to Strength, Dexterity or Constitution score, to a maximum of 20.
• You have resistance to cold damage and get a swimming speed equal to your walking speed, if you don't have already a swimming speed which is faster than that, in which case it increases it by 10 feet instead.
• You are immune to the pressure and cold effects of the deep ocean.