Ah so they're like the Xenomorphs from the Alien franchise, their bodies morph into whatever the tadpole gets into. That's honestly awesome.
Also thanks for the link, the illustrations are quite amazing. The gnome mindflayers made me laugh, they're cute! Though I feel sorry for the ones who morph from a Deep Gnome and the Roper, nature can be quite cruel heheh

Honestly would love to see these in the game as I'm quite fascinated by the whole Githyanki/Mindflayer culture. Does that mean that Mindflayers who morph from Githyankis are generally smarter than those who morph from humans and such, since Githyankis are supposed to be the intellectually superior race?