The game is turn based, where one character will perform one action at a time. The player has three actions to chose: Focus (to obtain a new card, maximum is 5), Strike (attack with all of owned cards) and Block (blocks two cards if the opponent attacks). It is played in rounds, each player has 10 seconds to decide which action they'll perform. Characters are also given health bars, determining whether or not they would be able to fight.
Cards can come in four rarities. Most cards have three rarities that result in different qualities: Base (copper frame), Elite (silver frame), and Rare (gold frame). As a general rule, Elites are more potent than Bases, and Rares more potent than Elites, of the same name. By spending Gold, three Base cards of the same name can be exchanged/"fused" into one Elite, and likewise with fusing three Elites into one Rare. Super-Rare cards do not have any other rarities.

There are two types of currency in-game, Gold and Credits. Gold is easily acquired by winning matches, but the only way to get Credits quickly is through microtransactions, although a number of Credits are rewarded for each level-up and for participating in a weekly tournament. Gold can be spent on founding a team, fusing Base and Elite cards into Elite and Rare cards, getting a First Pack (three random Base cards, chance of one being an Elite instead), or acquiring specific cards from the Market.
The game is played with a deck of exactly 15 cards. No more than three cards can have the same name, whether or not they are the same rarity. In addition, Unique cards, signified by a circled U on the graphic, are limited to one each in a deck.