LogFAQs > #979124937

On a side note, if its just cards and not the deck building aspect you like:

Sentinels of the Multiverse. Each hero has a pre-built deck that is not modifiable USUALLY (certain cards by a hero or two as well as some villain cards can add or remove cards from the deck in some way beyond just putting it in the discard pile for eventual reshuffle).

The setting is, well, a "not marvel/DC" hero and villain universe. Which is actually pretty well thought out lore-wise.

In a game, you typically play 3-5 heroes fighting the villain (in the table top, and technically online, you can split this up amongst multiple players or have every player just manage their own hero's deck, with you choosing the heroes, villain, and environment deck before the game starts).

Many of the heroes have some level of "build up" mechanics where they want to get Power and Equipment cards into play to expand what they can do and/or their versatility in dealing with what the villain (which is "auto-played" via rules printed on the villain cards) does to mess with them. The Environment is often a wildcard, with some being easier or harder based on what kind of events they have (generally, they can mess with both the heroes and the villains, but some like Rook City, basically an even more crime-infested Gotham, are notably more slanted towards giving you a harder time than messing with the villains, whereas the one with the dinosaurs and volcanos will basically go after anyone depending on the rules each dinosaur and prehistoric whatnot targets).

There is an alternate mode for some cases where a villain team is instead balanced to go against an equal number of heroes. And there is a final "raid boss" style of game that is, well, basically a multiversal Endgame sort of scenario.

A joke/reality is that because its a multiverse from the start, every game you play is technically canon. This does not affect the gameplay, its just official lore. So yeah, if you play with two heroes and two hero versions of what were originally villains against one of those characters' actual villain forms, the idea is that yes, this happened.

I highly recommend looking into it at least if you like superhero stuff and card games.