While its true that pemium eggs open a new path, still the best avaliable team should be:
Leader. Gaiou vs Zamba // Omega X // Goodra X
Members: Blackwargreymon X/UlforceVdramon X + Blackwargreymon X/Ulforce Vdramon +WvsM + Mastermon/AvsL/Lucemon FM.
Without runes, and with infinity loop, each digi reaches 9999 with its main race, while its secondary hits 7k~8k, runed gets up to 9k.
Gaoiu hits for 6,2k or about that line, double of that hit makes for the resisted dmg more than enough. Omega helps killing faster with its leader and Goodra allows for unresisted dmg while providing shields.
If survival is still a thing, then the last dual (light/dark) could be queenchessmon instead.