Crystalback Grizzly

Crystalline Resonance. When the bear takes bludgeoning damage, its crystal plates vibrate violently. Until the end of its next turn, creatures within 10 feet have disadvantage on concentration checks and cannot benefit from being invisible (their outline refracts in the crystals).

Reflective Carapace. When the bear is targeted by a spell attack (like fire bolt or guiding bolt), roll a d6. On a 6, the spell reflects back at the caster as if they had targeted themselves.

Alpine Predator. The bear has advantage on Stealth checks made in snowy or rocky terrain.

Multiattack.
The bear makes two attacks: one with its Bite and one with its Crystal‑Claw.

Bite. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 15 (2d8 + 6) piercing damage.

Crystal‑Claw.
Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage plus 7 (2d6) radiant damage as the claws refract sunlight.

Shatterburst (Recharge 5–6)
The bear slams its crystalline back into the ground, releasing a burst of razor‑sharp shards. Each creature within 15 feet must make a DC 15 Dexterity saving throw, taking 21 (6d6) slashing damage on a failed save, or half as much on a success. Creatures that fail the save by 5 or more are bleeding, taking 5 (1d10) slashing damage at the start of each of their turns until they receive magical healing or succeed a DC 12 Medicine check.

Bonus Action

Resonant Roar (1/Day).
The bear unleashes a deep, harmonic roar that vibrates the air. Each creature of its choice within 30 feet must succeed on a DC 15 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the save at the end of each of its turns.

While frightened this way, creatures hear a disorienting ringing that imposes disadvantage on attack rolls.