Finally, there's probably a small group of players who want the cards for unique reasons, like building an Un-set cube (which becomes a lot more realistic with three Un-sets rather than two) or even Un-set collectors, which I'm sure exist in some number, although this last group has to be pretty tiny
Twelve mana
Equip Vigilance Whenever this creature mutates, you gain 4 life
However, I believe the more important metrics are the sale $ multiplier of EV and the sold / EV % premium
The most ridiculous of these is likely Camellia, which can create a massive army of Squirrel tokens practically at the click of a button, just as long as you have plenty of support for foraging
It was misunderstood at first and considered bad, but had tournament success nevertheless