Gold!

Golden Rule + vanilla Espeon + normal summon Sapphire Pegasus = Saryuja/Apollousa/Underworld Goddess + Ashura King/Battlecruiser Dianthus. Put 2 Pegasi in s/t zone with Golden Rule, then summon them out with Espeon. Have all Pegasi, including the one ns'd, put lvl 3 Advanced CBs in the s/t, including Advanced Espeon. After link summoning, with AE's effect, summon all ACBs from s/t and Xyz summon. I think it's safe to say this is the card that finally makes the deck good.

I fixed the ratios finally. With 3 targets, you're only going to proc Melody once per game, plus you already get a summon and Rainbow Dragon off of CBRD, which is more searchable anyway, so Melody is redundant at this ratio. I maxed out the Pegasi and added 1 vanilla Tortoise and Persian so we can make Tri-Edge Levia or Ashura King without requiring Advanced Dark.