Alfur Sentinel

Álfur Gauntlet. The Álfur Sentinel cannot be disarmed of their Dancer's Death, and all melee attacks made by the Álfur Sentinel while the Álfur Gauntlet is equipped are considered magical. The Álfur Sentinel can also dismiss the Dancer's Death as a bonus action and can resummon it using another bonus action. 

Magic Resistance. The Álfur Sentinel has advantage on saving throws against spells and other magical effects.

Boots of the Álfur. The Álfur Sentinel cannot be perceived through sound, and they have advantage on all Stealth checks that rely on moving silently.

Spellcasting. The Álfur Sentinel is a 2nd-level spellcaster. Its spellcasting ability is Constitution (spell save DC 14, +6 to hit with spell attacks). The Álfur Sentinel has the following spells prepared:
Cantrips (at will): produce flame, true strike
1st level (3 slots): ensnaring strike, detect magic

Multiattack. The Álfur Sentinel makes one attack with their Dancer's Blade and can make one attack with their Midasian Bow or cast one spell.

Dancer's Death. Melee Weapon Attack: +5 to hit, reach 5 ft., 1 target. Hit: 10 (2d6 + 3) piercing damage and 8 (1d8 + 3) force damage.

Midasian Bow. Ranged Magical Weapon Attack: +6 to hit, reach 50/100 ft., 1 target. Hit: 7 (1d6 + 3) piercing damage, and the target creature must make a DC 12 Constitution saving throw or be paralyzed until the end of their next turn.

Duelist's Boon. The Álfur Sentinel can use a bonus action to cast true strike on one target they can see within 60 ft. While a creature is marked by the Álfur Sentinel's true strike, they are illuminated and cannot be affected by effects such as invisibility. 

Parry. The Álfur Sentinel adds 2 to its AC against one melee attack that would hit it. To do so, the knight must see the attacker and be wielding a melee weapon.

Sapphire Escape. When the Álfur Sentinel gets below 30 hit points, they hit a button on their hip, which after the end of its next turn, teleports them up to 5 miles to the nearest Grove or another safe area. If there is no safe area within 5 miles, they are teleported 5 miles away in a random direction. The Álfur Sentinel must be able to speak and have at least one hand free in order to trigger this reaction.