One Piece: The One Thing That Would Make Rocks D Xebec Turn His Back on Blackbeard

Blackbeard was supposed to elevate the D name; instead, the heir to Rocks D. Xebec built his empire on betrayal, dragging a once-fearsome legacy through the mud.
There is a new One Piece take doing the rounds, and it is a spicy one: if Rocks D. Xebec could see what Blackbeard turned into, he would lose it. The theory connects Rocks, Whitebeard, and Teach in one long line of loyalty and betrayal. Some of it tracks with the series. Some of it is fan stitching. Let’s break it down without getting lost in the weeds.
"THIS is my legacy?!"
Why fans are heated: that Marineford moment
We all remember the gut-punch: Whitebeard, half a mountain of a man, torn up and still refusing to drop. And then Teach walks in, the guy Whitebeard let live on his ship for years, and finishes the old man in front of the world. As far as anime betrayals go, that one stays near the top of the list.
The claim that sparked this round
A tweet on October 10, 2025, framed it like this: Whitebeard once stood with Rocks D. Xebec against Imu, helped protect Rocks’ child at God Valley, then took that child in… and that kid grew up to be Blackbeard, who later stabbed Whitebeard in the back. It is a tidy, dramatic loop — and it explains Teach’s brand of chaos as a warped echo of Rocks’ legacy.
What the story actually gives us (and what fans are filling in)
- Canon: Rocks D. Xebec led the Rocks Pirates decades before the Great Pirate Era. That crew included some future monsters: Whitebeard, Big Mom, and Kaido. They fell at the God Valley Incident after a clash involving Roger and Garp.
- Canon: Rocks went after the highest targets, including Celestial Dragons, and wanted to seize the world. He was not subtle. Think conquest, not careful plotting.
- Canon: Marshall D. Teach joined Whitebeard’s crew at a young age, lived under him for years, murdered Thatch to steal the Dark-Dark fruit, fled, captured Ace to trade him to the Marines, and returned at Marineford to help finish off Whitebeard before taking the Tremor-Tremor power.
- Not confirmed in the series: Rocks having a biological son. The idea that Teach is that son is fan theory, not established fact.
- Not confirmed: Whitebeard teaming with Rocks against Imu specifically, or Whitebeard saving Rocks’ child at God Valley. The series has not shown Whitebeard facing Imu, or Whitebeard raising a child because of Rocks.
- Opinion in the discourse: Rocks had hulking ambition with the will to command legends, while Teach is more chaos-first, leadership-second. You can argue his crew looks like a roster of opportunists who will bounce the second the wind changes.
So what about Rocks vs. Teach as leaders?
If you buy the comparison, Rocks pushed to break the world and crown himself by sheer force — the guy corralled Whitebeard, Big Mom, and Kaido at once. Teach, by contrast, is a scavenger king: calculated when it suits him, shameless when it pays off, and absolutely fine torching every bridge behind him. Both are terrifying. Only one ran a shark tank full of future Emperors and made it swim in the same direction.
The Whitebeard piece of it
Whitebeard complicates everything. He treated crew as family, and he treated Teach like family until Teach made it impossible. That is what makes Marineford sting — not just a captain put down, but a father gutted by the kid he fed, housed, and protected. Strip away the theories and the drama still plays the same: it was a personal betrayal at a world-shaking scale.
Would Rocks be proud or disgusted?
If you think Teach is Rocks’ heir, you can squint and see the ambition. If you think Rocks demanded loyalty even in hellfire, Teach looks more like the guy who sold the map to hell for a better seat. Either way, the contrast is what makes the conversation fun.
Where do you land: would Rocks nod at Teach’s rise, or spit at his methods? Drop your take in the comments.
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