I just put in summary statistics in the log, which you might find interesting (and make your suspicion of Buff Booster with no Holy/Yellow a reasonable guess, though Bloody Battle might be more likely): 🏅 Raid Tournaments – Log, Overview, Attacking, Matchmaking, Scoring, Restrictions, Special Rules, and Rewards
And the new thread is up: 🏅 [Dec 29, 2019] 37th Raid Tournament! — 4* Buff Booster, All Elements