Awesome, thanks very much for keeping us in the loop!   "The green Two-headed Lindwyrm" x "was designed as a spriter's alt", maybe? Though I guess that may be better-suited for the parents, even though there's no green variant two-headed lindwyrm there.   Or "Forest Two-headed Lindwyrms were" x "initially rarer than the Alpines" might be a nice one, given the Forest/Alpine dichotomy is right in your pair.   Or "Two-headed Lindwyrms first also" x "dropped in the C