Subrule · Chapter 1
cr:1.8.1a
The source of an effect is the same as the source of the ability or effect that generated it, unless otherwise specified by the effect.
Example: Electrify has the text “The next time an attack action card hits a hero this turn, it deals 3 damage to them,” which is a delayed-triggered effect that triggers to deal damage, specifying the source of the damage effect as the attack action card that caused the effect to trigger.