That is bonkers good, its basically 2 cards in 1
Double-sleeving will ease your worries
I'm running a few because while cards like Hushbringer are quite good early, you'll want to make sure Soul Warden can trigger which means you may end up having to sac Hushbringer to Helm of Possession or Ashnod's Altar to make your own deck work better
In the game, you would encounter Articuno, Moltres, and Zapdos in these caves and you had one opportunity to catch them
This could mean that the A2 expansion (which is just only a part of the game's January content schedule) will be the first full expansion coming to the game, bringing with it a card offering closer to that of the initial Genetic Apex set
My Captain Nghathrod deck was also somewhat disappointing since I built it around milling and the horror theme, but it turned out to be slower than anticipated