Game Mechanics refers to any action that automatically happens due to the interior workings of the Yu-Gi-Oh! game.
Monster Cards and the GraveyardEdit
Whenever a Field Spell Card is in play, and another one is activated, the one that was on the field first is destroyed by Game Mechanics, since two Field Spell Cards cannot be in play at once.
If a Field Spell Card is active, and a new Field Spell Card is activated, and if activation of that card is chained to with a card that destroys it, like "Mystical Space Typhoon" or "Dust Tornado", the already-active Field Spell Card will remain on the field.
Whenever the monster that an Equip Card is equipped to is destroyed, or removed from the field, the Equip Card is automatically destroyed and sent to the Graveyard, unless there is an effect present to prevent it.
Types of Monster Cards
Types of Spell Cards
Types of Trap Cards
ATK • DEF • Level • Attribute • Type
Playing Field Zones
Types of Summon
Types of Monster Effects
Types of Effect Monsters
Types of Spell Speed
Aqua • Beast • Beast-Warrior • Dinosaur