IelloGames wrote:
Because buying cards is the last thing you do on your turn, newly acquired cards are only taking effect AFTER the end of your turn, or on your next turn.
Cards you buy are immediately in effect.
For example, the card that gives you 1 star point when you buy cards. You immediately gain a star when buying that card. Some cards useful next turn, but they are still in active when you buy them, like cards that give you extra damage on an attack (spiked tail), these cards can't be used because the attacking phase is already over, you'll have to wait until your next turn for it to work.
My reference in this is Richard himself (the creator of the game), where he answered a question from a player on a forum (about the broadcaster or TV card, don't remember how the cards is called).