Beyaz Kesim (White Half-Dragon)

Brute: A melee weapon deals one extra die of its damage when Beyaz Kesim hits with it (included in the attack).

Rampage: When Beyaz Kesim reduces a creature to 0 Hit Points with a melee Attack on its turn, it can take a Bonus Action to move up to half its speed and make a melee weapon Attack.

Wounded Fury. While it has 45 hit points or fewer, Beyaz Kesim has advantage on melee attack rolls.

Ice Walk. The dragon can move across and climb icy surfaces without needing to make an ability check. Additionally, difficult terrain composed of ice or snow doesn't cost it extra moment.

Multi attack. Beyaz Kesim makes two attacks with its warhammers if wielding one in each hand.

Massive Greatsword. Melee Weapon Attack: +6 to hit, reach 15 ft., one target. Hit: 55 (9d10 + 6) slashing damage.

Warhammer.  Melee Weapon Attack: +6 to hit, reach 10 ft., one target.  Hit: 19 (4d8+6) bludgeoning damage, or 26 (4d10+6) bludgeoning damage if used with two hands.

Cold Breath (Recharge 5-6). The dragon exhales an icy blast of hail in a 15-foot cone. Each creature in that area must make a DC 18 Constitution saving throw, taking 32 (7d8) cold damage on a failed save, or half as much damage on a successful one.

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. Spent legendary Actions are regained at the start of each turn.

Extra Attack (Reckless). Beyas Kesim may make an extra attack with its equipped weapon, but all attacks made against Beyas Kesim until the end of his next turn are made with advantage.

Move (Costs 2 Actions).  Beyas Kesim can move up to half of its movement speed without provoking attacks of opportunity.

Dragon Queen's Spirit (Costs 3 Actions). Beyas Kesim's breath weapon is automatically recharged.