Uruk-hai Berzerker

I'll Be Back (Recharges after a Long Rest). If the uruk warchief is reduced to 0 hit points, after 1d4 rounds it regains 9 (1d10 + 3) hit points. If the fight ends before the 1d4 turns are up or if this effect has already been used, then he dies.

Fury.  While above half health, the Berzerker has advantage on attack rolls. Additionally, the Berzerker has a critical range of 19-20. Also the DC for its Frightful Presence increases to 16 and affects all creatures within 60 ft

Multiattack. The Berzerker uses its Frightful Presence and makes two attacks with its Longsword

Uruk-hai Longsword.Melee: +7 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 4) slashing damage.

Frightful Presence. A creature of the Berzerker's choice with 30 ft that can see it must succeed on a DC 14 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the Berzerker's Frightful Presence for the next 24 hours.

Enter the description for how legendary actions work for your monster here.

Legendary Action Name (Costs # Actions). Enter the description for your legendary action.

Enter the description for how mythic actions work for your monster here.

Mythic Action Name (Costs # Actions). Enter the description for your mythic action.