Quick answer: The Blackwater Longblade Diver guards the Blue Blossom Compass chest on Meigu Lake’s island, using six two-handed longblade attacks alongside a netter. Face him early, get up fast after knockdowns, and always dodge his red flash overhead chop.
Blackwater Longblade Diver location in Meigu Lake
During daylight, battle this oversized Blackwater Crew fighter on the island’s boardwalk and ground. His weapon is a long, weighty blade, but he isn’t a full boss: a small health meter appears above him rather than a boss bar along the bottom of the screen.
Use the bell at Blackwater Crew Dock in Meigu Lake to rest. Your health and healing refill before the fight.
Continue onto the wooden deck beyond Blackwater Crew Dock. The island lies across the water.
Press Space to leap from one wooden post in the water to the next. The final post takes you onto the island.
Walk toward the Blue Blossom Compass chest and keep turning to check behind you. The Blackwater Longblade Diver and the netter attack on this walk, and he comes in from behind.
Blackwater Longblade Diver attacks and how to answer them
The names below describe what each attack looks like on screen. They are not in-game names.
| Attack | What you see | Your answer |
|---|---|---|
| Charging two-handed swing | Runs in, wide two-handed arc | Turn to face him early |
| Knockdown swing into ground stab | Sideways swing floors you, then a downward stab | Get up and away, or block |
| Sideways swing into overhead chops | Hop and swing, then two or three chops | Expect more than one chop |
| Raise and slam | Blade lifted high, slammed down | Be ready to move |
| Swing into leaping strike | Swing, then a jump with blade raised | Deflect both hits |
| Red flash overhead chop | Blade up, red flash, chop down | Dodge, do not block |
The charging swing usually opens the fight, and it often comes from behind you. Facing him before he arrives keeps that first arc from landing for free.
Getting knocked flat is the real danger. His combo does not stop while you are on the ground, and the stab follows straight after. Get up and clear out, or block it.
Any time the blade goes up over his head, something heavy is coming. After a sideways swing, that means a string of chops rather than a single one. With the raise and slam, it is one of his biggest hits, so move as soon as the blade is high.
The red flash marks his hardest attack. The chop that follows hits harder than anything else he does and knocks you away. Blocking it does not work in your favor, so dodge it every time.
Dealing with the netter and finishing the fight
The netter is a second threat on top of his blade. Its nets shock you while the Longblade Diver keeps swinging, so the damage piles up quickly. Take the netter out, or keep it out of reach while you work on him.
Late in the fight, an execution prompt (E) can appear over him. Press it when it shows up to finish him.
The fight ends when he collapses and leaves Remnant Dust. Walk a short distance farther along the island to reach the Blue Blossom Compass chest. Nearby, the trident-wielding Blackwater Diver wades along the shore of Meigu Lake.
