An average all rounder with an emphasis on seduction, they're exactly what you'd expect from a Lava/Succubus/Beast mix.
In terms of raw stats you can consider them a superior Fire Beast, though the difference in level type means the end result will vary. Worth considering if you want a Fire Beast for a non-lava team but don't want to be dragged down by their lava movement.
Of special interest is their fixed skill, WillDestruction. It will target all humanoid characters on the field, hitting them with Entice and Slow for a number of turns. Used correctly, this allows you to separate and pick off multiple units one by one for recruitment, or just lust-lock and defeat. Especially in combination with MassSeduction, which they can also learn.