Its a good way to keep your counters feeling like a good investment, and it makes losing your Creatures a little less painful
However, its terrifying effect relies on its second triggered ability: At the beginning of our upkeep, Portal to Phyrexia allows us to put target creature cards from a graveyard onto the battlefield under our control
Notably, Jund is not the best place to be if you're a blue-white deck
Part of a cycle, these crystals are all pretty neat
Many cards, particularly those on the Reserved List, are worth a tidy sum
I really love this in decks with an untap theme that can really draw the cards and deal the damage, or as a win con in untap/combos with Sword of the Paruns or Umbral Mantle