The Marvels OverPower expansion, also known as OverPower: The Marvels is an unreleased set.
From information gathered around the Internet, the Marvels expansion would include 275-300 cards with about 1/3 of them being new cards.
Jack has estimated the number of cards to be 304 with:
- 41 Power Cards
- 8: Levels 1 to 8 Energy
- 8: Levels 1 to 8 Fighting
- 8: Levels 1 to 8 Strength
- 8: Levels 1 to 8 Intellect
- 5: Levels 1 to 5 Multipower
- 4: Levels 5 to 8 Any-Power
- 25 Character Cards
- 148 Special Cards
- 74 Universe Cards
- 7 Mission Cards
- 6 or 7 Event Cards
- 5 or 6: Event cards for the Mission
- 1: reprinted Hideout Discovered
- 1 Artifact Card
- Avenger's ID
- 1 Location Card
- unknown, possibly Marvel Universe
There are 90 new Special Cards, 2 new Character Cards that have been confirmed. There has been speculation about new Mission and Event cards but no information has been discovered. Beyonder would have been reprinted to reflect a proper inherent ability. Galactus would have been reprinted to give him an 8 Intellect and modify his inherent ability to lower his point total to 24 for tournament deckbuilding.
The legality of the Marvels OverPower expansion varies. Some groups prefer to play OverPower with the official printed cards and do not consider the Marvels to be legal. Other groups like the new variety of special cards, especially the ones that make characters more useful. The Toronto group of players have decided that the Marvels are legal at tournaments and meetups.