Undulate Assault

:If you have a vanguard with only Aqua Force for its clan, this card is only from Aqua Force. (Drop):When your Blue Storm Armada is played from hand and put into the order zone, 3, and call this card to . :When this unit boosts a grade 3 or greater vanguard with "Maelstrom" in its card name, this unit gets +2000 until end of that battle. 1, choose two of your other rear-guards, and swap their positions.