Invocation Frontiers

Real-time game, in which up to 6 players must simultaneously and continuously play cards to its own boards trying to defeat at least one of the different powers of any of the opponent's cards and take them. The effects of the played cards are instantaneous and change the powers and abilities of other cards in play.

It's a fast and frenetic game, that can be played even with kids.
The game is played in rounds until the deck is empty (more players means less time). When this happens, the players count the total strength of the defeated cards, and who has more is declared winner.
It can also be played in constructed deck mode.