The Sixth Rank Fearless Ship's attempt to advance to a Star-Annihilating Starship is no longer solely dependent on Alien Blood for a substantial increase in the success rate of promotion; the key factors now include the rank of the Primordial Blood, the Law Comprehension Degree, special resource formulas, and additional promotion resources.
A drop of Eighth Rank Dominant Origin Blood is likely to directly enhance the promotion success rate by more than 15%. If combined with special resource formulas and Song Wujiang's Spatial Law Comprehension Degree, it would certainly elevate the promotion success rate to a very considerable figure. Add to that one guaranteed Sixth Rank [Time Realm Fruit], and the Dragon Spine Song Family could very well leap into the ranks of the Immortal Clans overnight.