Square Enix recently held a special event in Japan, revealing a brand new PC battle game, Lord of Vermilion: Arena. Based on the long-running console and arcade card game franchise, Lord of Vermilion, Arena will feature a rather unique 7 vs 7 mode, with local reports referring it as a MOBA.
Similar to the card-base system found in the predecessors, players will be able to build decks and summon servants into the game as the primary source of attack. More powerful servants will require more mana, and it is up to players to come up with different deck combinations for different matches.
From the screenshots, it seems there is a cap of 200 mana, and players can bring up to 4 servants to the battle field. It is said that player character themselves can be customized, but I guess the main focus is still on collecting cards and deck building. Alpha phase begins on October 17th in Japan.