Alpha Werebear

Shapechanger. The alpha can use its action to polymorph into a Large bear-humanoid hybrid or into a Large Dire bear, or back into its true form, which is humanoid. Its statistics, other than its size and AC, are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.

Keen Smell. The alpha has advantage on Wisdom (Perception) checks that rely on smell.

Pack Leader. The alpha's allies have advantage on melee attack rolls against any hostile creature within 5 feet of the alpha and the alpha isn't incapacitated.

Alpha's Presence (Hybrid Form Only). Any lycanthrope that starts its turn within 30 feet of the alpha's Hybrid form must succeed on a DC 21 Wisdom saving throw or be forced to use their reaction to transform into their own Hybrid form.

Legendary Resistance (3/Day). If the alpha fails a saving throw, it can choose to succeed instead.

Multiattack. In bear form, the alpha makes three claw attacks. In humanoid form, it makes three greataxe attacks. In hybrid form, it can attack like a bear or a humanoid.

Bite (Bear or Hybrid Form Only). Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 25 (3d10 + 7) piercing damage. If the target is a humanoid, it must succeed on a DC 21 Constitution saving throw or be cursed with werebear lycanthropy.

Claw (Bear or Hybrid Form Only). Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 21 (2d12 + 7) slashing damage.

Greataxe (Humanoid or Hybrid Form Only). Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 21 (2d12 + 7) slashing damage.

The alpha can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. The alpha regains spent legendary actions at the start of its turn.

Attack. The alpha makes a claw attack.

Intimidating Roar. The alpha lets out a furious roar, any creature within 30 feet of the alpha that can hear it, must succeed on a DC 20 Wisdom saving throw or be frightened until the end of the Alpha's next turn.

Mauling Charge (Costs 2 Actions). The alpha moves 20 feet towards a target and then makes a claw attack, on a hit, the target takes an extra 9 (2d8) slashing damage. If the target is a creature, it must succeed on a DC 21 Strength saving throw or be knocked prone.