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ace was 2 years with WB but he didn't teach him advanced coc, even if ace fought wb 100 times! sabo was with dragon a lifetime but he didn't show advanced coc, or advanced coa, or anything, same with bb for 20 years in wb crew.
buggy was with roger yet he didn't even learn basic haki, sengoklu didn't teah corazon armaments, he only teached it to vergo rofl
buggy was with roger yet he didn't even learn basic haki, sengoklu didn't teah corazon armaments, he only teached it to vergo rofl