Removing a permanent card from the battlefield and placing it in the exile zone is a core game mechanic within Magic: The Gathering. This action effectively removes the card from the current game, preventing it from being easily returned to the battlefield. For example, a creature sent to the exile zone cannot be resurrected by typical reanimation spells. This differs significantly from sending a card to the graveyard, where it remains accessible to a variety of card effects.
This removal mechanic offers a powerful way to neutralize threats and gain advantage. Unlike destroying a permanent, sending a card to exile circumvents abilities that trigger upon death or destruction. It also provides a more permanent solution against recurring threats, especially those that can return from the graveyard. Historically, exile effects were less common than destruction effects, and were often associated with specific colors of mana or powerful, rare cards. The increasing prevalence of exile effects reflects a shift in game design towards more impactful and definitive removal options.