Official rule text
1.3 Each ability describes when and how a player can resolve it. effect that occurs before the word “then” or they cannot resolve the effect that occurs after the word “then.” a If an ability with a specified duration is resolved, the effect of the ability remains through that duration, even if the 1.18 Each ability can be resolved once for each occurrence of that component that caused the ability is removed. ability’s timing event. For example, if an ability is resolved “At the start of combat,” it can be resolved at the start of each
View official source
Source: Twilight Imperium: Fourth Edition - Living Rules Reference: Prophecy of Kings
Expansion: Prophecy of Kings
Version: 2.0
Reference: Rule 1.3