His Hyper-Bullets alone would be enough to one-shot/BFR Maxima...
"The Grand Admiral was smart and subtle, but never used his brilliance to show up or humiliate anyone.
He demanded results, but never perfection, and had amazing stores of patience for those who were truly working to their fullest ability.
It was a pity Thrawn's style of leadership hadn't spread through the rest of the navy.
If that happened, he suspected, the Empire would stand forever."
I believe those were toys from Metron. It was kind of disappointing reading his stories for the first time after hearing the hype, and learning he wasn't completely a self made villain, but had one of the most powerful and most brilliant New Gods backing him.
Soon as his patronage was withdrawn, Black Zero folded like a house of cards.