le medium undead wight 

Perception +10; darkvision

Skills Athletics +11, Intimidation +9, Stealth +6

Str +4 Dex +1 Con +4 Int +0 Wis +3 Cha +2

AC  18; Fort +11, Ref +6, Will +10

HP 50; Immunities poison, unconscious

Final Spite [R] When the wight is reduced to 0 Hit Points, it can use its reaction to make a Strike before being destroyed. It doesn't gain any Hit Points from drain life on this Strike.

Speed 25 feet

Melee [>] claw +12, Damage 1d6 + 4 slashing plus drain life

Drain Life (divine, necromancy) When the wight deals damage to a living creature with its claw Strike, the wight regains 2 Hit Points and the target must succeed at a DC 17 Fortitude save or take 2 damage that can't be healed. The wight can use drain life multiple times, but a single creature can't take more than 8 unhealable damage. Each full night of rest heals 2 of the unhealable damage, and a full day of bed rest increases the recovery to 4 of the unhealable damage.

Beginner Box, page 79. Reprinted in TiO.