I keep seeing all these most powerful character threads, and they're always the same group of characters, so I'll start something a little bit different.
This list will exclude anything that utilises the following: Tailed Beast, Shikotsumyaku, Wood Release, Dojutsu, Senjutsu.
It will also exclude anything that's a member of the following: Otsutsuki Clan, Kaguya Clan, Kohinata Clan, Hyuga Clan, Uchiha Clan, Uzumaki Clan, Senju Clan, Mount Myoboku, Ryuchi Cave, Shikkotsu Forest.
And yes, it's the strongest characters, so you can include animals if you want.
1)hiruzen(his fight with guruguru showed why he is highly talented shinobi especially the way he countered his attack by using 5 transformation simultaneously)
3)shino(really scary and badass insects, not very great way to die)
6)kurenai(her genjutsu skill rivals itachi)
So basically anyone who uses chakra?
I meant the things that are closely related to Kaguya or God Tree. So things like: Dojutsu, Senjutsu, Shikotsumyaku, Wood Release, and Tailed Beast, would be the things that are closely related to Kaguya or God Tree. The you-know-what clans as well.
And chakra is not related to Kaguya and the Shinju...?
They are, and I'm not talking about chakra, I'm talking about specific abilities, lol. Everyone that has a derived ability of Kaguya/God Tree is considered closely related, and everyone else is considered not closely related. I'm sure most of the people that reads and watches Naruto would know that by now.
Interesting that you allow something as broken as Eight Gates but not Shikotsumyaku (which isn't Kaguya's power btw, it's Kimimaro's). A similar thing can be said for Wood Release (since what makes Hashirama broken is his jinchuriki-like reserves, not his wood release).
Practically, if you forebade use of Six Paths power, the Juubi, Kekkei Mora and Mangekyou, you've covered the most "hack" techniques out there.
Else, there's no reason not to forbid any and all Kekkei Genkai.
We don't know much about him, but Sakumo's renown rivaled (or overshadowed depending on which scns I read, idk which one it is) the Sannin, so he should be up there.
Hanzo, seeing as he took on the Sannin and is like, "okay you can live if you use this title I'm giving you for surviving against me."
Kisame is freaking scary based on even what only 30% of him was capable of.
3rd Raikage for obvious reasons.
Onoki, I would've loved to see him fight in his prime.
Hiruzen has earned his spot, even in his old age. Same as above, I would've loved to see him fight in his prime. But one gripe I have about him using all 5 Nature Transformations simultaneously to stop Guruguru's technique: Hiruzen's clones obviously matched each elemental attack in power. But why did he match each element with the same element? He could have easily hit each attack with its weakness and possibly land a good hit on Guruguru. But whatever.
Interesting that you allow something as broken as Eight Gates but not Shikotsumyaku (which isn't Kaguya's power btw, it's Kimimaro's).
But the difference between Eight Gates and those broken ones, is the fact that you would die after fully using it (Eight Gates Released Formation), so it's like a last resort thing rather than a spamming thing. Isn't the Shikotsumyaku a derived ability of the All Killing Ash Bones?
A similar thing can be said for Wood Release (since what makes Hashirama broken is his jinchuriki-like reserves, not his wood release).
1. Hiruzen/Minato(never used sage mode in life sucked at it)
3. Kakuzu (unkillable and five chakra natures)
4. Guy (I don't count 8 gates because a technique that kills you within a few minutes lets you tank one opponent but then your dead so you're not the most powerful anymore any opponent fast enough will run away and wait for him to die)