Subrule · Chapter 6
cr:6.4.2a
The condition of replacement and any variable values are determined each time a replacement effect could be applied to an event.
Example: Arcanite Fortress has the text “Spellvoid X, where X is the number of equipment you control with Arcanite in their name.” The value of X for Spellvoid is determined each time the replacement effect of Spellvoid could be applied. If another replacement effect is applied first, the value of X is recalculated before Spellvoid can be applied.