>>280459081
Blackbeard having multiple DF's is not complicated. The first fruit he ate was the Kraken fruit, which enables him to have multiple Devil Fruits because he has multiple hearts. His Jolly Roger is also a Kraken.
His crew survived being blown off their raft by the knock-upstream. BB having a zoan fruit that can live in water explains this.
Kraken is the mortel enemy of Moby Dick, the name of Whitebeard's ship.
I noticed during his fight with Ace that the shadow moves like tentacles.
His beard also has three tails in it, mimicking tentacles/referencing the 3 hearts.
It's also implied at Marineford that eating the heart of a devil fruit user is how their powers are stolen.
The 'eating the user' plot device has FOR SURE been used twice in One Piece with Big Mom and Blackbeard eating Whitebeard's heart at Marineford. The nips have a thing against cannibalism being broadcast or shown in their media, so it being covered up makes sense from a storytelling perspective and physical perspective.