What is the third layer when dealing with continuous effects?

The third layer when dealing with continuous effects refers to text-changing effects. In the Magic: The Gathering rule hierarchy, layers are used to determine the application of continuous effects in a specific order.

Text-changing effects primarily modify how spells and abilities are read and interpreted but are distinct from other effects that may alter a card’s characteristics. Text-changing effects can include anything that changes how a card functions or is understood, such as effects that change what abilities a creature has.

Control-changing effects, power/toughness-changing effects, and color-changing effects fall into other layers of the sequence defined by the Comprehensive Rules. Control-changing effects apply first, followed by power/toughness adjustments, and color modifications are governed by their own layer as well. Understanding this hierarchy is vital in gameplay to accurately determine how different continuous effects will interact with each other.