Large beast, unaligned
Armor Class 17 (Half-Plate barding)
Hit Points 102 (12d10 + 36)
Speed 40ft.
STR - 20 (+5)
DEX - 14 (+2)
CON - 16 (+3)
INT - 3 (-4)
WIS - 12 (+1)
CHA - 8 (- 1)
Skills Perception +3, Stealth +6
Senses passive Perception 13
Languages -
Challenge 5 (1,800 XP)
Keen Smell.The tiger has advantage on Wisdom (Perception) checks that rely on smell.
Heavy Pounce. If the tiger moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, that target has disadvantage to the saving throw to avoid getting knocked down.
Man Eater. This tiger has been trained to hunt and kill humans for more than food. It hunts and attacks with extreme prejudice. Its damage dice are doubled against humanoids. (As calculated into the attacks below)
Armour Rune - Horrific Appearance. The tiger’s barding has been enchanted with a fear rune. Any humanoid that starts its turn within 30 feet of the tiger must make a DC 15 Wisdom saving throw. On a failed save, the creature is frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, with disadvantage if the tiger is within line of sight, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the tiger's Horrific Appearance for the next 24 hours.
ACTIONS
Multiattack. The tiger can make two attacks; one with its claw and one with its bite.
Bite.Melee Weapon Attack: +7 to hit, reach 5 ft., one target.
Hit: 17 (2d10 + 6) piercing damage.
Claw.Melee Weapon Attack: +7 to hit, reach 5 ft., one target.
Hit: 20 (4d6 + 6) slashing damage. If the target is a creature, it must succeed on a DC 15 Strength saving throw or be knocked prone.
The Beast of Vallaki was designed as the boss monster to a 3rd level one shot set in the Curse of Strahd campaign setting.
The use of a tiger in the campaign book reminded me of the 2001 french horror film 'Brotherhood of the Wolf'. So I used that as inspiration to create the modified tiger above.