Only one Weapon may be attached to an Ally at any time, and once attached to an Ally, a Weapon cannot be removed or transferred to another Ally. Kingdom cards are featured in "Genesis Era" sets; these cards are chosen before the beginning of the duel, and only one Kingdom card can be played in a deck. Kingdom cards have effects that can be activated at any time, but only once per duel, and their effect cannot be prevented. Before beginning the game, both players search their Castle Deck for one Gold card and place it into their Gold Reserve areas. A player may only choose a Normal Gold card at the beginning of the game. Then the players shuffle their decks and pass the deck to an opponent to cut. The starting player is chosen randomly. Each player draws eight cards from the top of their Castle Deck to get their starting hand. Beginning with the first player, if a player does not want his or her starting hand, they can perform a mulligan as many times as they want, every time drawing one less card. A player wins a round when the other player draws or "ruins" the last card of their Castle Deck. In a full game of Myths and Legends, the first player to win two rounds becomes the winner of the game. As in other card games, Myths and Legends uses keywords or mechanics in order to simplify many effects of the card. Many of these effects have been continually used through the game, while other have been discarded due to overuse or because of balance issues. This game is divided into sets, and each set showcases a different type of mythology. The sets are as follows:   From here begins the segunda era (second age). Cards from previous editions cannot be added to "segunda era" decks. From here begins MyL Genesis. New rules were added to the game. As it happened with "segunda era", cards from the early sets are not compatible with these sets. After a 4-year hiatus, the game was reedited with new content. Many "segunda era" block mechanics were brought back, ignoring the multi-color aspect of "Genesis". No cards from previous sets are compatible.