dragon sleeve card sleeves Shield: Matte Sapphire Standard Blood and Digimon Dragon Shield - Dual Matte

Sneasel Weavile EX Spiritomb Manaphy Palkia EX Mars Cyrus Weavile EX and Spiritomb finish off what looks like a great Dark type deck with Darkrai, while Manaphy and Palkia EX are great tools for Water type decks possibly with Gyarados EX

I wouldnt play Fledgling Dragon in a deck that doesnt do anything to help it, but with enough spells, fetch lands, and the like, Im sure you could make it work

Effect (2): From the GY, banish this card to Fusion Summon a Charmer or Familiar-Possessed Fusion Monster

which potentially automatically win duels if the opponent is unable to find their unsearchable outs in the opening hand