General strategy
The goal of the battle system is to create a line up of four different attacks that is used against an opponent. You have six card slots that must be filled. You can crash a line of three or more identical cards into each other to multiply their damage. You can also use cards that will block series of attacks from your enemies, or you can counter it combos.
Support slots
Out of your six slots, four of them are dedicated to different moves. Place your rarest and most powerful card as your leader or support card in the remaining two slots. Select cards based on their rarity and experience level to determine which are strongest and best suited to your needs.
Weapon and player selection
Each player card can used to fight about three rounds of battles. Every avatar can equip three weapons, and each of the weapons is used for one of the fighting rounds. You can use your avatar's main weapon card in battle. Every weapon card can be used for each round. You can tap this weapon's skills directly below the SP card. Each weapon has different Defense Up, Heal, Attack Up, Weapon Durability, and Timer's Up. You will get a notificaiton of what kind of element is influenced on a stage before it begins. Change your weapon element to your advantage. Water is strong against Fire, Fire is strong against Air, Air is strong against Water, and Light and Dark are strong against one another.
Weapon medals
When you unlock a new avatar, you cannot place them on your team unless all of your nine weapons are unique. If needed farm weapon medals by fighting matches in previous levels and use them to get new weapons from the card store. Friend invites are done through referral codes. Rewards are given when someone uses your code, or you use someone else's code. Having friends who are actively playing the game allows you to earn weapon medals faster.
General strategy...