Blizzard Servant — Crystallized Affinity

At 11th level, a winter child strengthens the bond between her and her companion, imbuing it with her own power. Her blizzard servant gains the following benefits: Large size, +4 bonus to Strength and Dexterity, +2 bonus to Constitution, +2 natural armor bonus to AC, DR 5/—, and cold resistance 20. In addition, its whirlwind of hail ability no longer affects allies. If the Winter Child already has an animal companion, it only receives half the bonuses and does not increase in size.