Summon: You may choose a card from your hand to swap with a card in your Market.
Card sounds may differ from in-game as they get updated.
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.
Summon - Does something when played
Market - Merchants allow you to store up to five cards in your Market when you build a deck. When cards are retrieved from a Market, they are drawn.