Onslaught: Secretly choose a card in the enemy player's Market. The next time they draw a card from their Market, transform the chosen card into a Firebomb.
Card sounds may differ from in-game as they get updated.
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.
Onslaught - Does something when played if you or any of your units have attacked this turn. This includes standard attacks as well as Killer and Relic Weapon attacks.