Me thinks Caribou works for Crocodile. BB only wants to be King of a shithole.
Robin knew Pluton was in Wano this whole time IIRC and she and Vivi have major history with Crocodile ofc.
Oda had Robin with the Revs for 2 years too or whatever.
Caribou feels most fitting to Crocodile for some reason but they're also both earth type logias who can "drown people" so some free forced parallels there /s.
Shanks and Blackbeard made massive gains now, so it's gonna be cross guilds turn too. Idk how they're get ponegylph copies but I'd laugh so hard if they're able to get pluton somehow at least.
Or oda might troll us and caribou is working for Shanks or the burned mark man /s.
Seriously though I've felt it should be Crocodile who he's trying to get in the good books of, to give him the ancient weapon info. Would make most sense.
I used to think Caribou would be BBs 10th captain but he got wrecked so hard in the past already and kuzan the obvious choice was the right answer all along.
Plot twist don krieg has made his own cross guild with arlong, enel, Kuro and gin and hes the one will get pluton due to caribou. /s