Multiattack. The warrior makes two Greatsword or Heavy Crossbow attacks.
Greatsword. Melee Attack Roll: +5, reach 5 ft. Hit: 10 (2d6 + 3) Slashing damage.
Heavy Crossbow. Ranged Attack Roll: +3, range 100/400 ft. Hit: 12 (2d10 + 1) Piercing damage.
Parry. Trigger: The warrior is hit by a melee attack roll while holding a weapon. Response: The warrior adds 2 to its AC against that attack, possibly causing it to miss.