[ He's clinging onto the dim hope that they'll become useful someday. Perhaps he can poison an enemy or something, because these certainly can't be eaten. ]

Is speed necessary to help people...?

[ Minato's always just sort of stood in place and let his summons do the fighting; it's a good system, in his opinion. He does, however have to stop and think back to how he figured out how to use his newly given magic though, as intuitive as it'd eventually come. ]

I think there was a letter given out somewhere... it said to "look inside yourself."

[ Do some soul searching, etc. Not particularly helpful. ]