[On Play] [When Digivolving] You may place up to 3 of your other blue Digimon as this Digimon's bottom digivolution cards. Then, return all other level 4 or lower Digimon to the hand. For each card placed in this Digimon's digivolution cards, add 1 to the level this effect may return. [Your Turn] [Once Per Turn] When an effect places a digivolution card under this Digimon, you may play 1 level 5 or lower Digimon card with [Aqua]/[Sea Animal] in one of its traits from this Digimon's digivolution cards without paying the cost. [Rule] Trait: Has the [Aquatic] type.