Big impact cards are temporary power ups that can be used for a single game. You can only use up to three cards per game. Try to only use them sparingly for smaller games and save them for when they are really needed. They are only obtained from card packs.
Boost cards
When a player has a blue exclamation mark next to them, it indicates they have an open slot for a boost card. You can obtain boost cards like any other card. They give a passive bonus to a player's stats.
Bucks
Bucks are the currency required to purchase card packs. They are earned by leveling up and by winning Big Bowls. Big bowls are leader board-type games that involves playing a certain amount of matches. Depending on your total score, you will earn coins and bucks.
Healing
At times, a player may become injured after a game. The chance of this increases if you lost. When a player is injured, their stats are reduced. Heal them with coins.
Player ratings
Examine the number in a circle at the bottom left corner of each player card. That number represents that player's overall strength. Look for the higher numbered cards. Look at each of your player cards. If your offensive line has players with more higher Run than Hands, then set your offensive bias to for more Run plays.
Big impact cards...