Captain Yamamoto stomps. He either blitzes Gremmy, releases his shikai and fries Gremmy, binds him with a Hado, Goes Bankai and deep fries him, or simply punches him. Seriously, this Gremmy stuff is getting out of hand. All of Gremmy's strongest attacks Require concentration. Something Yamamoto will not allow to happen. PIS is the ONLY reason Gremmy survived for so long against Kenpachi. Also, Saying that he could simply imagine being immune to Yamamoto's fire(who's fire is far more destructive than regular fire) is a NLF.
people need to stop using Gremmy, potentially his power is the most powerful. He hasn't given even a limit to his imagination.
unless the writers makes him lose he wont lose .
he has even stated he fought over confident people like kempachi and won every time.
gremmy's power>>>>>>>>anyone in bleach