Its a fine rate for the effect, but the addition of flashback makes this almost the reanimation equivalent to cards like Timeless Witness you can reanimate two things, or gain value from discarding or milling it
most, though not all, are foil treated, and if they arent, theyll have extended, full or an alternate art illustration, in comparison to the standard version of the card that can be found in Play Boosters
Whenever any creature dies, you gain one life and every opponent loses one be that your own creatures you feed to a Viscera Seer, or your opponents' that die for any reason
How that translates to a competitive, collectible strategy game remains to be seen
We kid of course: it's an MTG Arena bug , one seemingly introduced in the latest update