Rule · Chapter 3
cr:3.15.6
When a layer N is removed from the stack by a rule or effect, any layer M where M¿N becomes layer M-1.
Example: There are 4 layers on the stack. Layer 2 is an instant card and is removed by a “negate” effect. Layer 3 becomes layer 2, and layer 4 becomes layer 3, while layer 1 remains unchanged.