Prismatic VulfBear

Standing nearly ten feet tall, the Prismatic VulfBear is a hulking bear-like creature composed of jagged, interlocking crystals that pulse with shifting hues. As it moves, its facets refract light into dazzling rainbows. Razor-sharp shards line its shoulders and back, and its glowing, multifaceted eyes betray a savage intelligence.

Lore

Long ago, planar tempest storms fused elemental energies into living crystal. The Prismatic VulfBear is one such aberration — a predator born of planar chaos, driven by a hunger for arcane energy and a lust for destruction. It tears through barriers between realms, seeking victims whose life essence it can shatter and absorb.

Stats

• Hit Points: 110 (13d10 + 39)
• Armor Class: 16 (natural armor)
• Speed: 40 ft.
• Challenge Rating: 6 (2,300 XP)
• Origin: Planar
• Alignment: Chaotic evil

STR	DEX	CON	INT	WIS	CHA
19 (+4)	12 (+1)	18 (+4)	3 (-4)	14 (+2)	8 (-1)

• Saving Throws: Str +7, Con +7
• Skills: Perception +4, Stealth +4
• Damage Resistances: bludgeoning, piercing, and slashing from nonmagical attacks
• Damage Immunities: cold
• Damage Vulnerabilities: thunder
• Senses: darkvision 60 ft., tremorsense 10 ft., passive Perception 14
• Languages: —

Abilities

Crystal Carapace: When a creature hits the VulfBear with a melee attack, the attacker takes 5 (1d10) slashing damage from the shards of crystal.

Planar Resonance: When struck by a spell or effect that deals force or radiant damage, it can use its reaction to absorb part of that energy, gaining resistance to that damage type until the end of its next turn.

Actions

Multiattack: Two attacks: one Bite and one Claw.

Bite: Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 15 (2d10 + 4) piercing damage.

Claw: Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 4) slashing damage.

Shatterburst (Recharge 5-6): Emits a burst of resonant crystal shards in a 15-foot cone. Each creature in that area must succeed on a DC 15 Constitution saving throw or take 18 (5d6) slashing damage, or half on a successful save.

Legendary Actions

Shard Step: Teleports up to 20 feet to an unoccupied space it can see.

Loot

• Prismatic Crystal Shard: A multicolored shard worth 150 gp. Can be used as a spellcasting focus for radiant or slashing spells, or in crafting magical items.

Session 12 Encounter

Two Prismatic VulfBears defended the resonator’s mid-range, teleporting twenty feet at a time and leaving sprays of crystal in their wake. Mal’s thunder-based attacks (which the VulfBears were vulnerable to) cracked their carapaces faster than the party could otherwise have dropped them.