In what order are multiple effects applied within layer 7?

The correct answer is based on a series of sublayers first, then timestamp order. In the context of Magic: The Gathering, layer 7 deals with effects that modify a permanent's power and toughness. Within this layer, modifications are applied in a specific order defined by sublayers, which categorize effects by how they alter the characteristics of a creature.

Sublayers in layer 7 dictate the sequence in which effects are resolved. For instance, effects that set values or change them add complexity and are ordered first, while other effects, such as those that modify power and toughness without setting specific values, are applied later based on their timestamp.

Timestamp order applies after sublayer processing. This means that if multiple effects are applied to a creature's power or toughness, the ones that took effect last will override earlier effects if they conflict. Understanding this order is crucial for correctly adjudicating gameplay scenarios where multiple effects impact creatures' stats simultaneously, ensuring accuracy and consistency in rulings.

The other choices do not accurately reflect how effects are processed within layer 7. Some do not align with the game's mechanics, while others misrepresent the significance of timestamps versus sublayer resolutions, leading to misunderstanding how creature modifications interact during gameplay.