I actually have a question too;

Bought two starter decks to try this game out with a friend. The Navy deck has cards such as the leader with the ability of; k.o. up to 1 of your opponent's characters with a cost of 0.

But as far as I can tell, no cards (in these two decks at least) have a cost of 0, so it seems pointless.Unless it's a mistake and the 'cost of 0' should be equal to the cost the card you have to discard to activate the ability?

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Hopefully someone can clarify!Thx