Selenelion Twin

The Selenelion twins, Gleam and Glister, have advantage on saving throws against being charmed, and magic can't put them to sleep.

A Selenelion twin regains 5 hit points at the start of her turn as long as both twins are alive and within 60 feet of each other. A twin dies only if she starts her turn with 0 hit points and doesn't regenerate.

While both Selenelion twins are alive and on the same plane of existence, each is aware of the other's emotions.

Melee or Ranged Attack Roll: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 6 (1d4 + 4) piercing damage.

Ranged Spell Attack Roll: +5 to hit, range 60 ft., one creature. Hit: 12 (2d8 + 3) radiant damage, and the target must succeed on a DC 13 Wisdom saving throw or be transformed into a bat for 1 minute, as though affected by a polymorph spell. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Ranged Spell Attack Roll: +5 to hit, range 60 ft., one creature. Hit: 12 (2d8 + 3) radiant damage, and the target must succeed on a DC 13 Wisdom saving throw or be blinded 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.

In her mind's eye, a Selenelion twin can see what the other twin sees for up to 1 minute, provided both twins are alive and on the same plane of existence. Maintaining this effect requires concentration (as if concentration on a spell).