sentences:  Defense action cards may be played at any time, while attack and neutral action cards may not be played unless the combined victory point total of both players is at least seven points.At the end of a turn, players replenish their hands up to their hand limit (or, if already at their hand limit, exchange one card in their hand for a new one); players begin with a limit of three cards, but this may be expanded with certain improvements.When drawing a new card, players may choose to take the top card from any draw pile, or pay two resources to look through any one draw pile and take the card they need.