Digivolve Cost 1 : Blue 2 from Lv.3
[Effect] : [When Digivolving] If you have 1 or fewer Tamers, you may play 1 [Yao Qinglan] from your hand without paying the cost.
(Rule) Trait: Has [Aquatic] Type.
[Inherited Effect] : [End of Attack] [Once Per Turn] Gain 1 memory.
What does this card's (Rule) mean, exactly? : This is a special rule for this card that always treats it as if it also has the [Aquatic] type trait.