In PvE (Player vs Enemy) Events, the player is matched against pre-constructed enemy decks. These decks remain the same each time the node is played, and may be inspected in advance (for example, on the correspoding Event page on this wiki), if the deck's cards have been identified.
PvE events are contrasted with PvP events, in which the player battles against decks built by other players for the same event.
In PvE games, as in PvP games, an AI (artificial intelligence) bot controls the enemy's play.