Crystal wolf

Pack Tactics. The Crystal wolf has Advantage on an attack roll against a creature if at least one of the Crystal wolf’s allies is within 5 feet of the creature and the ally doesn’t have the Incapacitated condition.

Multiattack. The Crystal wolf makes two attacks, using Scratch or bite in any combination. It can replace one attack with a Solar flash.

Bite (Wolf or Hybrid Form Only). Melee Attack Roll: +5, reach 5 ft. Hit: 12 (2d8 + 3) Piercing damage. The target must make a Constitution Saving Throw: DC 15. Failure: the crystal wolf takes [roll]1d4[/roll] damage and the target is marked with a crystal shard. the target may use their action to re roll the save to remove the shard.

Scratch. Melee Attack Roll: +5, reach 5 ft. Hit: 10 (2d12 + 3) Slashing damage.

Solar flash. Ranged Attack Roll: +4, range 150/600 ft. Hit: 11 (2d10 + 2) Radiant damage. and must make a Constitution save or be blinded until the end of the Crystal wolfs next turn.

Refract. As a reaction to being struck by radiant, necrotic or fire damage the crystal wolf may strike the attacker back with Solar flash.

Crystal wolf has one legendary action

Consume crystal.  The Crystal wolf makes a single attack against a target with a crystal mark Gaining [roll]6d6[/roll] temperary hit point.