This is not a major admonition I mean, we cant go about with a ruler demanding a 50/50 split, because were not dealing with a perfect representation of a population here
Like most Magic: The Gathering cards, the value of Unstable Amulet depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Modern Horizons 3)
Unfortunately, the drop rate of such a booster is 0.05% , and statistically, it unlocks every 2,000 open boosters
While this is far from flashy, it can be used to ensure the Altar's controller has at least one creature to exile once it's in play
Having a battlefield full of vigilant creatures let you swing out and attack without having to worry about blockers on your opponent's turn