Well, I've only played a few matches with this deck, but I think it did pretty good (although the AI in YGO 2009 can suck at times). But here goes (it's a final countdown deck):
Monsters
-Blowback Dragon x3
-Dandylion x1
-Dark Resonator x3
-Gellenduo x3
-Guardian Sphinx x3
-Marshmallon x1
-Neo Spacian Grand Mole x1
-Pengiun Soldier x3
-Plaguespreader Zombie x3
-Shield Wing x3
-Spirit Reaper x1
Spells
-Clock Tower Prison x3
-Final Countdown x3
-Level Limit - Area B x1
-Messenger of Pease x3
-Mystical Space Typhoon x1
Traps
-Gravity Bind x1
-Magic Jammer x2
-Negate Attack x1
-Royal Decree x2
-Seven Tools of the Bandit x1
Total: 43 cards
Extra Deck
Stardust Dragon x3
The logic of the deck is fairly obvious; use Final Countdown early and stall. I think this deck could use some improvement, especially when its biggest enemies are burn decks. Thus I think I should replace Neo-Spacian Grand Mole (since I like never see the use of it) and other things for Des Wombats to remedy this.
Blowback Dragon and Guardian Sphinx is there to clear the field of any threats. BD provides a solution of getting rid of Spells/Traps that are face-up on the field that seem to give me problems, or to destroy face-down Spell/Trap cards to help ensure my safety. Guardian Sphinx can clear the opponent's field of monsters and can really annoy them if they have anything Fusion/Ritual/Synchro/Special effect summoned on the field.
You may be asking why I have Stardust Dragons in there. they're there to prevent my opponent from destroying my side of the field. This could be a problem to summon, but since I have Dark Resonator and Plaguespreader Zombies to help shield my life points as well as being Synchro fodders, this should not be a problem. My whole deck revolves around preventing my opponent from touching me or my monsters, so Stardust Dragon helps fortify my defences if they try to kill my Messenger of Peace, Gravity Bind, etc. Guardian Sphinx is used with Dark Resonator and Blowback Dragon is used with Plaguespreader Zombie for the Synchro Summoning of Stardust Dragon.
Clocktower Prison is there to prevent battle damage, and can really hassle opponents who doesn't use field Spell Cards! If I have Clocktower Prison with at least 4 counters, Des Wombat (which I will add soon), a card that prevents attacking, and Stardust Dragon after Final Countdown is activated, I am good to go.
I know this deck could use improvements, especially since YGO 2009 does not have all the cards currently released, so my resources were somewhat limited. Any comments? Oh, and this deck also hates mill decks, so any solutions to this?
I also have a fairy deck that I'm somewhat proud of. Here it is:
Monsters
-Airknight Parshath x3
-Gellenduo x2
-Honest x2
-Marshmallon x1
-Mask of Darkness x2
-Neo-Parshath, the Sky Paladin x2
-Nimble Momonga x3
-Nova Summoner x3
-Radiant Jeral x3
-Shining Angel x3
-Spirit Reaper x1
-The Agent of Force - Mars x3
-The Agent of Jugment - Saturn x2
-Zeradias, Herald of Heaven x3
Spells
-Field Barrier x2
-Fissure x1
-Heavy Storm x1
-Monster Reborn x1
-Mystical Space Typhoon x1
-The Sanctuary in the Sky x3
Traps
-Magic Cylinder x1
-Magic Jammer x2
-Royal Decree x2
-Sakuretsu Armor x3
-Seven Tools of the Bandit x1
-Torrential Tribute x1
Total cards: 52
The main idea of this deck is to gain a large life point lead and finish the opponent off with Neo-Parshath, the Sky Paladin, The Agent of Force - Mars, or Agent of Judgment - Saturn. How you can potentially to this is like this: play The Sanctuary in the Sky, then suicide Shining Angel/Nova Summoner to summon Airknight Parshath to deal piercing damage. I was thinking of replacing Sakuretsu Armor with Draining Shields to help widen the life point difference (totally forgot about them as I was remaking a deck from a long, long time ago). Field Barrier ensures that my Santuary in the Sky lasts a while before going down.
This deck may seem large, but there are several cards to remedy this. I have 6 monsters that can search for lower-levelled fairies in my deck, which of course provides a shield and more importantly, thins my deck. If The Sanctuary in the Sky is present on the field, then you should have no problem with Shining Angel summoning things in attack position. I also have Nimble Momongas to help thin my deck, and net me life points at the same time. Furthermore, Zeradias, Herald of Heaven searches my deck for my key field spell card, and on a minor side note, Airknight Parshath and the Neo-Parshath lets me draw a card whenever it deals damage (note that they have piercing effects), so that also helps me get what I want.
Oh, and Honest provides a good shield when special summoned by Nova Summoner when The Sanctuary in the Sky is absent, and its effect lets me return it to my hand. Furthermore, it lets me take down stronger monsters by adding their attack to my Light-type monster (which is the majority in my deck), so it's basically my monster directly attacking my opponent after calculating (assuming that no other cards that modify attack points are activated at this time).
A minor thing to note is that when The Sanctuary in the Sky is present, I can use Radiant Jeral as tribute/discard cost fodders to net me life points.
Comments are very much appreciated.