Blue Moon

Rules overview from the official rules:

The game consists of independent consecutive fights. The starting player begins the first fight.

Each fight is contested in one of two elements, either fire or earth, as announced by the starting player of the fight.
During each fight, players take alternate turns to play their cards building up power in their combat and support areas.
Basically, each turn the players play a character card and possibly some additional cards to at least match the total
power of their opponent, who must then in turn match his opponent’s power, and so on. – If a player is unable to do
this, he must retreat from the fight.

A fight ends when one of the players retreats. The other player is the winner of the fight and attracts a number of
dragons. Both players remove all their cards from their combat and support areas and place them onto their face up
discard pile. The retreating player then starts the next fight.

Usually, the game ends when one player runs out of cards and retreats from the last fight. Then the player with
dragons on his side is the victor and scores some victory points (crystals).
A player wins the game instantly if he has all three dragons on his side and then attracts further dragons.