Lightsworn

Lightsworns, known as Lightlords in Japan, are a set of monsters introduced in Light of Destruction. Their primary effect involves self-milling, aka sending cards from the top of your deck to your graveyard, either as a maintenance cost or as a cost to activate their effect. This may seem like a bad idea, especially since currently the Lightsworns don't have any way of preventing this discard effect, but two of their most powerful monsters - Gragonith, Lightsworn Dragon and Judgment Dragon - require a good number of Lightsworn monsters in the graveyard to activate, and another Lightsworn monster - Wulf, Lightsworn Beast - can be Special Summoned when sent from the deck to the graveyard. Exchange of the Spirit is also a good card combo (traditional format only), since you'll have many cards in your graveyard and the opponent doesn't. Currently in the OCG many players are using Lightsworns to counter Dark Armed Dragon decks, because of their field swarming capabilities.This deck is also a deck with a very fast and early chance of OTK using the mill effects and then summoning Gragonith, Lightsworn Dragon or by using Glorious Illusion if it is in the Graveyard. 2 of the dragons would very easily be able to create an OTK situation.