Yu-Gi-Oh!

Yu-Gi-Oh! is a strategic trading card game in which players draw cards from their respective decks and take turns playing cards onto "the field". Each player custom-builds his or her own deck, which can contain up to three copies of certain cards other cards such as monster reborn, card destruction,and etc must be pinned to 1. deck must contain a minimum of 40 cards but cannot exceed 60 cards which is the maximum. Players may also create an "Extra Deck" containing up to 15 cards that may only be used in certain situations. Each player starts with 8000 "life points", and the usual win condition is the reduction of the opponent's Life Points to zero.[7] This is typically achieved by using "monster" cards to attack the opponent's monsters and inflict damage and/or then attack his or her life points directly. The other two card types are "Spells" and "Traps", which have nearly an endless variety of functions. For example, these cards' effects may "destroy" an opponent's monster , negate the effects of an opponent's card, or retrieve a specific card from one's own deck, to name just a few. Most monster cards also have effects, in addition to their previously-mentioned ability to attack. Card effects are the driving force for the creation of innumerable strategies and play styles.

Each player's turn contains six phases (although some are technicalities and skipped in most situations): Draw Phase, Standby Phase, Main Phase 1, Battle Phase, Main Phase 2, and End Phase. During the Draw Phase, the turn player draws one card from his or her deck. The Standby phase exists only for card effects that occur at the beginning of the player's turn (e.g. maintenance costs for certain card effects) and is otherwise skipped. During each of the Main Phases, the player may "summon" a monster (once per turn, not counting other monsters summoned by card effects), manipulate monsters that are already in play, use Spell and Trap cards, and set cards face-down. During the Battle Phase, the player may attack the opponent's monsters (or his or her Life Points directly, if the opponent has no monsters in play) once with each of his or her own monsters, while the opponent may attempt to defend with his or her own Traps, Spells, or monster effects. The End Phase (like the Standby Phase) exists only for card effects that occur at the end of the player's turn, and is otherwise skipped. Play continues until a win condition is met. A player typically wins by reducing the opponent's Life Points to zero, but will also win if the opponent is unable to draw a card (i.e. has no cards left in his or her deck) or if a player successfully meets the conditions of a card that grants an automatic win (an uncommon strategy due to the relative ease with which a competitive opponent can prevent it).