Fey Ancestry. The shadar-kai has advantage on saving throws against being charmed, and magic can't put it to sleep.
Multiattack. The shadar-kai makes three Spiked Chain attacks.
It can use Shadow Jump after one of these attacks.
Spiked Chain. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit:10 (2d6 + 3) piercing damage. The target must succeed on a DC 14 Dexterity saving throw or suffer one of the following effects (choose one or roll a d6):
Shadow Jump. The shadar-kai teleports, along with any equipment is it wearing or carrying, up to 30 feet to an unoccupied space it can see. Both the space it teleports from and the space it teleports to must be in dim light or darkness.
In the gloom of the Shadowfell live shadar-kai, elves whose ancestors served the Raven Queen, a god of death and memory. They were brought to that realm in ages past, so long ago that they're now adapted to its cheerless environment, both physically and mentally.