Transmute Dinosaur

This spell transforms a creature that you can see within range into an ancient form. An unwilling creature must make a History Check against your Spell Save DC to avoid the effect. Creatures that are not reptilian make this check with advantage, and a creature with remaining uses of its Legendary Resist feature may automatically succeed on this check without expending a usage.

On a failed check, the target is transmuted into a randomly chosen dinosaur. The target's game statistics are replaced by the stat block of the chosen dinosaur, but the target retains its alignment, personality, creature type, Hit Points, and Hit Point Dice.

The target gains a number of Temporary Hit Points equal to the Hit Points of the chosen dinosaur. These Temporary Hit Points vanish if any remain when the spell ends. The spell ends early on the target if it has no Temporary Hit Points left.

The target is limited in the actions it can perform by the anatomy of its new form, and it can't speak or cast spells unless specified by the dinosaur's stat block.

The target's gear melds into the new form. The creature can't activate, use, wield, or otherwise benefit from any of its equipment.

A random dinosaur can be determined with the !Randino alias found on the Avrae workshop.