Whenever Monkey D. Dragon shows up there is something going on with weather/storms so I was thinking if it could be linked to a devil fruit.
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That’s when I noticed that in Strong World Episode 0 it is shown how Gol D. Roger escaped from Shiki’s fleet using a storm that wrecked Shiki (as said in the episode: “Gol D. Roger clashed and was spared by a sudden change of weather”)
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And later when Gol D. Roger died it was again nice weather when suddenly it started storming (coincidence, I don’t think so) and we saw that Monkey D. Dragon was present at the execution (in his coat looking like he was there for a cause), what if he found a way to get Roger’s devil fruit after he died?
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Just adding when Gol D. Roger died, Portgas D. Rouge was looking at the sky like she could tell from the weather something happened to Roger.
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Just simple speculation, what do you think?
*Theory by sansactions