Following my theme of making pure decks, this is one of the first "pure" decks I made. This is (no pun intended) a very special gem to me, as I don't think a lot of people realize just how strong this deck is with its own archtype. People keep adding cards outside the archtype, throwing in unnecessary traps or spells and it actually slows the deck down a lot. I used to shock people that I could even get out rainbow dragon as consistently as I did, and that was well before cards like crystal bond, conclave, ultimate magic (I had a high speed version that utilized advanced dark). Point is, there is a surprising amount of synergy in the cards alone, I can't say this can keep up with meta decks these days, but its still way faster than it used to be and really consistent. Getting out a turn two rainbow dragon is not hard, by turn 4+ you definitely have a few ways to win, whether its rainbow dragon, ultimate dragon, or abundance OTK. This is only going to get faster with Zenith coming out, although I'm hard pressed to figure out what to cut from this since the ratios are super perfect as is. (maybe one ruins, one bridge?)