Cheapest priced copy (Marvel's Spider-Man): $8.99 at Card Kingdom, near mint, their price list as of .
Impostor Syndrome 
Enchantment · Mythic · Marvel's Spider-Man · #34
Whenever a nontoken creature you control deals combat damage to a player, create a token that's a copy of it, except it isn't legendary.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
3 printings · $8.99 to $16.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel's Spider-Man Promos | 34s | Mythic | — | $16.99 |
| Marvel's Spider-Man | 34 | Mythic | $8.99 | $9.99 |
| Marvel's Spider-Man | 251 | Mythic | $8.99 | $9.99 |
5 rulings from Wizards of the Coast
- 19 September 2025Except for not being legendary, the token copies exactly what was printed on the original creature and nothing else (unless that permanent is itself copying something else; see below). It doesn't copy whether that permanent is tapped or untapped, whether it has any counters on it or Auras attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on.
- 19 September 2025If something becomes a copy of the token, the copy also isn't legendary.
- 19 September 2025If the copied creature has {X} in its mana cost, X is 0.
- 19 September 2025If the copied creature is copying something else, then the token enters as whatever that creature copied, with the listed exceptions.
- 19 September 2025Any enters-the-battlefield abilities of the copied creature will trigger when the token enters the battlefield. Any "as [this creature] enters" or "[this creature] enters with" abilities of the creature will also work.