Its skill-testing without being complicated, threading the difficult needle of lenticular design
This will naturally push us to find creatures whose value comes from their abilities instead of raw stats especially abilities which trigger on entering or leaving the battlefield, since we can potentially reanimate and re-use these abilities every turn
Madness has cropped up in multiple sets, including several Innistrad-based sets as a vampire typal mechanic, so you can go either way
What affects the value of Seedborn Muse
Top Five Most Likely to be Pack One Pick One Dinosaurs Top Five Most Likely to Win the Pro Tour Dinosaurs Top Five Dinosaurs Who Dont Take Crap from Nobody on Ixalan Top Five Most Bad-Ass Pirates on Dinosaurs Gishath, Suns Avatar Wakening Suns Avatar Territorial Hammerskull Frenzied Raptor Ancient Brontodon
She is now a living legend in the larger fantasy and concept art community, but will always hold a very special place within the art of Magic