The Golden Dragon's Den deck revolves around the two Golden Dragons to take down the opponents by using Blessings and PU to strengthen them. This is an un-upped deck that can all be bought at the Bazaar.
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12x Light Pillars
2x Golden Dragons
2x Holy Light
2x Solar Shields
1x Guardian Angel
3x Aether Pillars
3x Parallel Universes
You start off with the pillars (obviously) and try to get a Solar Shield up. Save up your quanta, and use the Holy Light to heal if the opponent starts getting out creatures early. Get enough for the Golden Dragon, at least two Blessings, and 1 or 2 PUs. Send out the Golden Dragon and shower it with Blessings, then subsequently shower it with PUs. This should net you around 30 damage a turn, possibly even 40 and above if you have all three Blessings and PUs. The Guardian Angel is in there in case you think the Golden Dragons might die from spells, although if that's the case, a few Quintessense cards will solve it, albeit they are pretty expensive. Elemental Mastery is pretty hard to achieve with this deck, but it's very simple to use and win with.
RT will wreck this deck unless you use Quintessense or other spell negaters (i.e. Cloak, Anubis's ability to give other creatures immortality). The Gravity Shield will stop this deck in its tracks. Earthquake is also a nuisance, since quanta production is very important in this deck. Repetitive use of Steal on the Solar Shields can halt the deck for a little bit, since that is protecting you and creating light quanta.