Very often a deck isn't viable but is only one or two pieces away, and then all of the sudden it becomes one of the best decks in the format
Even aside from the heavy hitters, theres staples like Impact Tremors, Intangible Virtue, and Curiosity, so youre almost always guaranteed a card thats useful to you somewhere
Near Mint Near mint is the easiest to determine, but a card can quickly fall into lightly played territory
If all that sounds too niche, remember you can play Metamorphic Alteration on opposing creatures to make them worse, copying a 1/1 token or whatever else is lying around
This is especially true in cEDH, where this card looks like an absolute slam-dunk
The main thing here though, is stealing the best Creature from among those and just putting it into play