Armor Class 15 ({@item studded leather armor|PHB|studded leather})
Hit Points 99 (18d8 + 18)
Speed 40 ft.
Saving Throws DEX +6, CON +4
Skills Acrobatics +6, Deception +5, Stealth +9, Survival +5
Senses passive Perception 12
Languages Common, Goblin
Challenge 5
Fortitude (Recharges after a Short or Long Rest). If damage reduces Irvan to 0 hit points, he can make a Constitution saving throw with a DC equal to 5 + the damage taken. On a successful save, Irvan drops to 1 hit point instead.
Multiattack. Irvan makes two Dagger attacks.
Dagger. Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 5 (1d4 + 3) piercing damage plus 14 (4d6) poison damage.
CRCotN, p. 191