Charge. If the bonewrought behemoth moves at least 10 feet straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 9 (2d8) piercing damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be pushed up to 10 feet away and knocked prone.
Multiattack. The bonewrought behemoth makes two greataxe attacks and one gore attack. Greataxe. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 17 (2d12 + 4) slashing damage. Gore. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) piercing damage. Sweep (Recharge 5-6). Each creature within 10 feet of the bonewrought behemoth must make a DC 14 Dexterity saving throw or take 3d12 slashing damage and be knocked prone. After using this action, all attack rolls made against the Bonewrought Behemoth have advantage until the start of its next turn.
Shatter. As a reaction to taking bludgeoning, piercing, or slashing damage from a weapon or spell attack, the bonewrought behemoth can increase the damage the attack deals by 5. If it does, all creatures within 5 feet of the bonewrought behemoth take 7 (2d6) piercing damage).