Well going by his comic history, he should easily make it up to 6 (and I mean EASILY).
On panel he's driven Arishem to his knees and it took the combined power of the rest of the Second Host to restrain him.
We've seen how Arishem IGNORED three skyfathers blasting him in the chest without even flinching. So if Arishem can do it, Tiamut should be able to too. So there goes Odin, Zeus and Sphinx.
Galactus trembled in fear of Tiamut when he awoke and Galactus was LIGHTYEARS away from the event. We've seen how even an imprisoned Tiamut had the power to completely alter Galactus' being by making his hunger limitless. If an imprisoned Tiamut can do that, imagine him free and fighting Galactus.
Exitar's the wild card. On panel it said he exceeds even Arishem in size and power. Well we know for sure Tiamut exceeds Arishem in power too. So who knows what would happen if they threw down?
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..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.
Well Guy, Exitar is said to be equal to the combined might of the fourth celestial host. Tthe second Celestial host was iirc, not as powerful as the fourth yet they managed to contain Tiamut, so I think Exitar should be capable of defeating Tiamut.
From what I've seen and read of them that's how I feel as well, sure Tiamut has the ablility to think for himself but I don't know how thats going to help him in a fight with Exitar who was made for such things, like killing and destroying.
Clears 1-3, gets pimpslapped by Galactus, then limps away to take out his frustrations on Arishem. Not sure how well he'd do against Exitar, so I'll just say it's a toss-up.
Yes but Tiamut was the one who did that to Galactus in the first place WHILE he was still imprisoned. The altered Galactus was to be his doomsday weapon. If an imprisoned Tiamut did that to Galactus imagine what an awakened Tiamut would do to him in a fight.
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..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.