The Grand Priest is said to be one of the top five strongest in the multiverse—actually he’s the absolute strongest. Holding unfathomable levels of power, Goku could tell that the Grand Priest was powerful by feeling the pressure he gave off. Whis, the most powerful being in Universe 7, openly admits that even his power is nothing compared to the Grand Priest. Whis also describes him as the strongest even among those five warriors, making him the strongest fighter in the entire multiverse. He is the strongest Angel in the series & is exceedingly superior to the Supreme Kais & Gods of Destruction, as evidenced when both Supreme Kais & G.o.Ds are terrified of the Grand Priest & would immediately kneel in his presence & do almost, if not, anything that the Grand Priest orders, implying he is capable of easily killing them if they dare challenge him, and he proved strong enough to block punches from Beerus & Quitela with his finger. He’s also the most proficient & most powerful master of Ultra Instinct & has a lot of Angel haxes.
Sensing a disturbance on Earth, the Grand Priest immediately teleported from the Omni-Kings palace, & teleported a few feet from you.
He speaks in a calm & polite tone with none of the arrogance & demanding behavior most gods show.
Grand Priest: “Gentleman (or Madam if female). I already know that you’re going to be alarmed but don’t be. I came here concerning a disturbance happening here on this planet. And you seem to be involved.”
Sensing the extremely phenomenal, godly power & authority he wields, you sense that this is a being that demands respects. You would kneel immediately if you got the memo. Unfortunately, you were foolish.
You rush to attack him, but being the most broken user of UI, his body is always in the Perfected Ultra Instinct state so it automatically dodges it (he can auto react to any threat without needing to acknowledge it). He’s on a DIFFERENT tier than everyone else. You turn around & punch him, but he EASILY stops it with one finger.
[NARRATOR: The Grand Priest is said to be one of the five highest fighters in the Multiverse by Whis. He can be considered the third most powerful character in the series, under only Zen-Oh and Super Shenron, with Whis describing him as the strongest even among those five warriors, making him the strongest fighter in the entire multiverse. Said to be far stronger than Whis, he is therefore the strongest Angel in the series and is exceedingly superior to the Supreme Kais and Gods of Destruction, as evidenced when both Supreme Kais and Gods of Destruction are terrified of the Grand Priest and would immediately kneel in his presence and do almost, if not, anything that the Grand Priest orders, implying he is capable of easily killing them if they dare challenge him, and he proved strong enough to block punches from Beerus and Quitela with his finger and capable of remaining unfazed by Rummshi's Battle Roar. It has also been said by Whis that he is the most powerful master of Ultra Instinct, far outperforming him. In the Dragon Ball Heroes series, he proved to be an extremely competent teacher, as within a matter of days, he was able to effectively train Goku to better utilize Ultra Instinct. He also displays the ability to eradicate a being as powerful as his children without even being in the same area and afterwards resurrect said eradicated being from existence, as shown by how he was able to easily kill and then revive Merus.]