Cranium Tiger

Keen Smell. The tiger has advantage on Wisdom (Perception) checks that rely on smell.

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 must succeed on a DC 14 Strength saving throw or be knocked prone. If the target is prone, the tiger can make one bite attack against it as a bonus action.

Illumination. As a bonus action, the tiger can shed dim light from its brain in a 5-foot radius, increase the illumination to bright light in a 5 to 20-foot radius (and dim light for an additional number of feet equal to the chosen radius), or extinguish the light.

Telepathic Shroud. The tiger is immune to any effect that would sense its emotions or read its thoughts, as well as to all divination spells.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 10 (1d10 + 5) piercing damage.

Claw. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) slashing damage.