"Elemental HERO Neos" + "Neo-Spacian Marine Dolphin"Must first be Special Summoned (from your Extra Deck) by shuffling the above cards you control into the Deck. (You do not use "Polymerization".) Once per turn: You can destroy 1 random card in your opponent's hand.
I know this card is used often due to the summoning requirements but I love making working neo space decks. One thing i've found out is that under the tcg official ruling you can use fusion tag and bubbleman to summon Marine Neos. Maybe this would work with a neos knight beat down, composed of miracle contact and forbidden chalice.