Cheapest priced copy (Marvel Super Heroes Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Kang Prime 
Legendary Creature — Human Villain · 3/5 · Rare · Marvel Super Heroes Commander · #406
Flying
Whenever Kang Prime enters or attacks, exile cards from the top of your library until you exile a nonland card. Put two time counters on that card. If it doesn't have suspend, it gains suspend. (At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. If it's a creature, it has haste.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 to $1.29 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes Commander | 85 | Rare | $0.49 | $0.49 |
| Marvel Super Heroes Commander | 406 | Rare | $1.29 | — |