Cursed Warrior

Medium undead, any evil alignment
AC: 18 HP: 119 Speed: 0 ft., fly 30 ft. (hover)
STR 16(+3) DEX 12(+1) CON 18(+4) INT 10 WIS 10 CHA 16(+3)
Saving Throws: Constitution +7, Charisma +6
Damage Resistances: Acid, Fire, Lightning, Thunder; Bludgeoning, Piercing, and Slashing from nonmagical attacks
Damage Immunities: Cold, Necrotic, Poison
Condition Immunities: Charmed, Exhaustion, Frightened, Grappled, Paralyzed, Petrified, Poisoned, Prone, Restrained
Senses: Darkvision 60ft., Passive Perception 10
Languages: The languages it knew in life
CR: 7
Ethereal Sight: The cursed warrior can see 60 feet into the Ethereal Plane when it is on the Material Plane, and vice versa.
Incorporeal Movement: The cursed warrior can move through other creatures and objects as if they were difficult terrain. It takes (1d10) force damage if it ends its turn inside an object.
Thirsty for Challenge: The cursed warrior persists for a challenging combat, adding 1d6 piercing or slashing damage on its melee attacks for each creature that is fighting it in melee range.
Unflankable: The cursed warrior is a master fighter, it is immune to being flanked.
Masterful Duelist: Thanks to its exceptional dueling skills, the cursed warrior takes +4 bonus on its AC (included in the AC).
Spellcasting: The cursed warrior is a 1st-level spellcaster. Its spellcasting ability is Charisma (spell save DC 14, +6 to hit with spell attacks). The cursed warrior has the following
spells prepared:

• Cantrips (at will): True Strike, Resistance, Vicious Mockery
• 1st level (2 slots): Shield

ACTIONS
Multiattack: The cursed warrior makes three melee weapon attacks. It wields either a greataxe or a greatsword.
Greataxe: Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: (1d12 + 3) piercing damage plus (2d6) necrotic damage.
Greatsword: Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: (2d6 + 3) slashing damage plus (2d6) necrotic damage.
Loot:

• Greataxe 
• Greatsword 
• Hel Shoes only if in Helheim!

They were great warriors in life. So glorious, that they deserved the feast in Valhalla. Yet, they were wicked and ruthless, so Odin did not let them in. Now they wander around in the land, always seeking challenges to test their mettle and blade. Myths say they sense the strength of whom they face with a mere look to their face. Some mortals tell stories of their facing of a cursed warrior and the creature just ignored them.