Special Trait Name. Enter the description for your special trait.

Spellcasting. The [monster name] is a #-level spellcaster. Its spellcasting ability is [ability score] (spell save DC #, +# to hit with spell attacks). The [monster name] has following [class name] spells prepared:
Cantrips (at will): [spell name], [spell name] 
1st level (# slots): [spell name], [spell name] 

Multiattack. Adrian makes two melee attacks.

Greatsword. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 4) slashing damage.

Javelin. Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 30/120 ft., one target. Hit: 7 (1d6 + 4) piercing damage.

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

Parry. Adrian adds 2 to his AC against one melee attack that would hit him. To do so, Adrian must see the attacker and be wielding a melee weapon.

Adrian can take 1 legendary action at the end of another creature's turn. He regains spent legendary actions at the start of his turn.

Move. Adrian moves up to his speed without provoking opportunity attacks.

Attack. Adrian makes one greatsword or javelin attack.

Intimidating Gaze (Costs 2 Actions). Adrian targets one creature that he can see within 30 feet of him. If the target can see Adrian, the target must succeed on a DC 13 Wisdom saving throw or be frightened for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

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

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