Lol. The funny thing is that they might actually be immune to that given Luffy's immunity to most poisons and Toriko's antibodies. But if Natsu joined the feast being a faily gluttonous eater himself, well..........
even coco couldnt make antibodies for the 4 beast poison.
but i dont think the 4 beast would resort to it since it just uses that as dressing to eat humans lol.
the feast would be awesome lol!
Team Shonen easily. Tsuna in he strongest form was able to react to and beat someone who claimed themselves to be FTL, which was believable given their ability to warp. Plus he was at small island buster level before achieving his strongest form IIRC.
Toriko right now could probably give the 4 beast a good run for its money on his own. Especially now that we know there are a crap load of monsters far more powerful than the 4 beast in the gourmet world.