Originally Posted by DRAGONBPY
Only one that can harm Obito is Naruto. This chapter confirms Minato cant use Sage Mode unfortunately. Prepare for Sasuke to go Sage Mode (Jokes)
well Hashi could if Madara would let him....yeah actually Minato isn't a senjutsu user what so ever...he just signed a contract for summoning due to his large chakra pool. Also when did the summoning for the toads have a time restraint? Gami stayed longer in the battle of Pain's invasion.