Official rule text
1.14 If the timing of an ability uses the word “before” or “after,” the ability’s effect occurs immediately before or after the described timing event, respectively. a For example, if an ability is resolved “after a ship is destroyed,” the ability must be resolved as soon as the ship is destroyed and not later during that turn or round.
View official source
Source: Living Rules Reference and FAQ - Prophecy of Kings
Expansion: Prophecy of Kings
Version: 2.0
Reference: Rule 1.14