Crystalmain

Keen Hearing and Smell. The Crystalmain has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Pack Tactics. The Crystalmain has advantage on attack rolls against a creature if at least one of the wolf's allies is within 5 feet of the creature and the ally isn't incapacitated.

Jaw's of Dagorond: The Crystalmain clamps his jaws down upon the target, dealing 2d8 points of piercing damage, the target must make a constitution save DC12 or else take 2d4 ice damage

Ice Spikes Great spikes shoot out of the crystalmains body, piercing any targets near it, anyone in a 10 feet radius must make a di13 dex save or take 1d12 point of piercing and frost damage 

Crystal breath: The Crystalmain shoots out a jet of ice at it's foes, if you are in a 10 foot cone radius the foe must make a constitution save of 15 or take half damage from 1d8 ice damage

Howl: The Crystalmain emits a howl that is meant to chill it's enemy's and make them tremble, each foe near the Crystalmain must make a di12 charisma save or be terrified for 1 turn.

Icy touch: When the Crystalmain is hit by a slashing attack, the foe must succeed on a d10 constitution save or take 2d4 points of ice damage