Cheapest priced copy (Marvel's Spider-Man): $0.69 at Card Kingdom, near mint, their price list as of .
Chameleon, Master of Disguise 
Legendary Creature — Human Shapeshifter Villain · 2/3 · Uncommon · Marvel's Spider-Man · #27
You may have Chameleon enter as a copy of a creature you control, except his name is Chameleon, Master of Disguise.
Mayhem {2}{U} (You may cast this card from your graveyard for {2}{U} if you discarded it this turn. Timing rules still apply.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
2 printings · $0.69 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes Commander | 148 | Uncommon | $0.99 | $2.49 |
| Marvel's Spider-Man | 27 | Uncommon | $0.69 | $1.49 |
2 rulings from Wizards of the Coast
- 19 September 2025You must follow all normal timing rules when casting a spell with mayhem. For example, you can't cast a creature card with mayhem you couldn't normally cast during an opponent's turn, even if you discard that card during an opponent's turn.
- 19 September 2025Mayhem represents an alternative cost that can be paid to cast a spell from your graveyard if you discarded the card with mayhem that turn. You must pay any additional costs the spell has.