During gameplay, when are abilities added or removed from a card?

The key factor in understanding the timing of when abilities are added or removed from a card lies in the nature of continuous effects. Continuous effects may come from various sources, including enchantments, activated abilities, or static abilities. These effects apply changes to cards when they are relevant and affect the game state.

When a continuous effect that modifies an object is applied, it can add or remove abilities from that object. For example, an enchantment might grant a creature an additional ability, or a card could remove an ability due to another effect. The resolution timing of these changes happens when the effect is in play, meaning that any relevant continuous effects will be applied as long as they are currently active and affecting that specific card on the battlefield.

Other options do not accurately reflect when abilities are added or removed from cards. The first option implies a particular sequence that is not universally applicable; the second suggests that player choice alone dictates ability changes, ignoring game mechanics; the last option implies a regular timing that doesn't match how and when continuous effects activate. Thus, recognizing the role of continuous effects clarifies that abilities are added or removed in accordance with their relevant applications during gameplay.