Posted it in the df thread, but it won't hurt here as well:
Caesar's plan:
Step A: Create deadly gas (4 years ago)
Step B: Combine deadly gas with a zoan df
Step C: The now created zoan "user" is able to incorperate other kinds of gas by simply eating it. A result that can't be achieved through research or so, because it defy's the laws of nature.
Step D: Create another type of deadly gas, wrap it up with a random df and let the gas zoan consume it.
Step E: Gas zoan absorbs the gas, creates an even more deadly mix…but dies shortly after because the second DF starts doing it's magic (Lucci said it takes a while before DF powers awake).
Step F: Super deadly gas is now all over the place, the Axolotl DF transferred back to one of the preparred apples. Time for CC to collect his loot. He can re-capture the super gas with his own Devil Fruit, and the Axolotl DF isn't lost.
Step G: Sell the weapon in barrelform or whatever. Repeat the process with the Axolotl DF for future sales.
We shall meet again, Smiley.
–- Update From New Post Merge ---
@King:
Oh Caesar, why did you fell into the "I could kill you right now with my powers, but I'll just leave you guys to be killed by something else without supervising anything" cliche? No wonder Law thinks you're a dumbass.
Lol indeed. Tho I wonder how the others intend to fight back. Luffy can't even raise his voice.