all Minato has is FTG + rasengan + some sealing jutsu we haven't seen so we cant facter them into this battle oh and edo regeneration
Tobi has Rinnegan + sharingan + that ghost ability + 6 jins + Izanagi and he is one of teh 3 main villains in the series right now I bet we haven't even scratched the servace of what he can really do you just know when it goes back to his battle he is going to end up pulling out some OP jutsu
in other words Minato is out classed and there is no way Tobi is going let himself get hit with rasengan again seeing as how he gets the gest of Minatos fighting ability first hand from their previous encounter
You are totally giving Tobi an advantage. You said that minato only have FTG + rasengan + some sealing jutsu and Tobi have Rinnegan + sharingan + that ghost ability + 6 jins + Izanagi. Obviously, you wanted to make him that powerful because you assume that he has all the power of rinnegan and sharingan which we have not seen so far. I'm not saying that he doesn't have it but you're not giving both Tobi and Minato an even playing field.
If you would like Tobi to have mastery of rinnegan and sharingan so at least you would consider that Minato being a Hokage mastered at least 1000 skills as shown here. Consider this and it's an even playing field.
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Another thing, there is no evidence saying that Minato will be exhausted by teleporting TBB. Other's are speculating it. Also, I don't think that he will run out of chakra because he is an edo. It's so simple if all of you would think. Minato would use all his chakra to the point that it reaches
zero and we all know that when a shinobi depleted all his chakra he'll die, right? Being an EDO Minato will just regenerate thus giving him an unlimited chakra. Unlimited in the sense that he'll just regenerate after using all his chakra..What's so hard to understand? Speed alone is a very big factor in defeating Tobi.