While values change, this could be due to the viability of the card
The thing the serpents are fighting with on both faces of the card is the foot of a Phyrexian which is obviously significantly larger
Its upkeep trigger forces life loss and card selection regardless of removal, which makes it one of the best zombie commanders in MTG for inevitability-focused strategies
One of the coolest things about her is that in addition to taking advantage of cards such as these, she can use them completely differently than they are traditionally used, you can Naus for far fewer cards and not even need to hit your win cons in order to generate massive advantage off of far fewer cards, or you can just go for broke
"Final Fantasy games are so rich with flavor, beloved characters, and unique settings that choosing a single game as the theme provided more than enough material to design a full deck of cards around," Magic's senior game designer Daniel Holt told IGN