Designed by Jinti, who did a stunning job.

Even among dragons, one name is only spoken in hushed whispers and in terror, lest they draw her attention and ire, or worse, her lust and hunger. A vile monster once sealed away by Dyrmair the Champion of Justice and his mate Ethsala the Word Weaver, Meryss is monster feared by monsters, no sin is beneath her, she desires nothing less than dominion over everything and everyone, and few can challenge her, as she is powerful beyond measure and a master of forbidden, black magic, her existence bound intrinsically with the abyss and giving her immortality, with some debating whether she can be considered a demonic entity altogether. The idea that she could escape her ancient prison sends shivers down the spines of all who know of her, except for those who revere her, whom work tirelessly to spring her from her imprisonment, with champions of justice working tirelessly to prevent that from occurring, lest the world come under tremendous peril once more.

Also, she's Forla's cousin, is just as ancient, and unlike Forla (who is genuinely affable if morally questionable), she has zero scruples, and they hate each other.

She's the Big Bad of the "Knights of Dyrmair", though she might also appear in Henshin Sisters.