Sea of Destruction (EX6-066) - Infernal Ascension

[Main] By placing 1 Digimon card with [Aqua]/[Sea Animal] in one of its traits from your hand as the bottom digivolution card of 1 of your blue Digimon, return all of your opponent's Digimon with the same level as the placed card to the hand.

[Security] Return all of your opponent's Digimon with the lowest level to the hand.