This deck is meant to be for fun casual play with friends. I came up with it since I noticed that no one seemed to give my boy Tyrant Dragon much love, so I decided to construct a deck to suit him. A good portion of the strategy hinges on using Metamorphosis on Fusilier Dragon to get King Dragun onto the field in order to start freely summoning dragons to the field. It can also be used to bring out Gatling Dragon if you're having trouble with your opponent's trump card. The other strategy at work is getting Horus to grow all the way up to Lvl 8, which King Dragun can be pretty helpful in making that happen. Once you have both Horus lvl 8 and Tyrant Dragon on the field, you've pretty much won the game.
As a sideboard strategy you can swap out several cards to add in Buster Blader, Lord of D and King of the Swamp as well as Polymerization in order to play Dark Paladin and have him power up off your own dragons. I recommend swapping out Tryrant Dragon, Flame Ruler as well as one of the Cyber-Steins and one of the Fusilier Dragons for the monsters. Then swap one of hte Metamorphosis cards and any spell card of your choosing for Polymerizations.