Interestingly, demand for Marneus Calgar hasnt been constant, but it seems a buyout is the cause of this price spike
You're not just running Zodiark for the board impact - you're running it as a value engine in Mazirek, Kraul Death Priest, Yahenni, Undying Partisan, or Mikaeus, the Unhallowed builds
Unlike the cards from the Starter Kit, these four promos have the signature star-shaped promo stamp in the set symbol area, which technically makes them unique printings of the card
The 2 of them duel
That said, Planar Chaos (aside from one very particular card) is not an especially valuable set
You arent always going to be in a spot to sacrifice a goblin or an orc for one of these effects, but there are definitely times where youd be happy to turn a creature into a card or a Treasure So if you dont already have an Orc Army, this is 4-mana for a 3/3 and a 1/1 with death touch, and if you do have one, this is 4-mana for a 3/3 and a +1/+1 counter on your Army