i dont think that kabuto sommuned manda, he just provided the seals and blood
i think it was oros chakra because kabuto was already weakened, i didnt notice him take the soldier pill after he got rasenganed by naruto (something like what thundrakkon said)

i liked this ep, but i didnt think it was that great
it was good to see oro get his ass pummeled by tsunade though

when shizune healed her legs, it looked like she was going to summon a creature too, if she was, i wonder what it would have been.

even though i dont read the manga, the next ep does seem fillerish