Grym-Mage Tyrannosaur

+4

While the tyrannosaur has half of its hit points or fewer, it can cast one of its innate spells as a bonus action, even if the normal casting time for that spell is an action.

D4

The tyrannosaur has advantage on saving throws against spells and other magical effects.

The tyrannosaur's innate spellcasting ability is Charisma (spell save DC 14, +6 to hit with spell attacks). The tyrannosaur can innvately cast rhe following spells, requiring only somatic components:

• At will: Barkskin* (self only), eldritch blast, false life
• 2/day each: Hellish rebuke, inflict wounds, misty step, pass without trace, spike growth

*The tyrannosaur casts barkskin before combat.

The tyrannosaur makes two attacks: one with its bite and one with its tail. It can't make both attacks against the same target.

Melee Weapon attack: +10 to hit, reach 10 ft., one target. Hit: 32 (4d12+6) piercing damage. If the target is a Medium or smaller creature, it is grappled (escape DC 16). Until this grapple ends, the target is restrained, and the tyrannosaur can't bite another target.

Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 19 (3d8+6) bludgeoning damage.