At the start of your turn, play the top card of your deck. If it's a unit, it gets Charge and Deadly.
Pay 5 to give a unit +5 Strength this turn.
Card sounds may differ from in-game as they get updated.
Charge - Can attack the turn it is played.
Deadly - Units and spells with Deadly kill any unit they damage, regardless of health. For example, a 1/1 with Deadly can kill a 5/5 attacker.