Black Ops 7 Rex Infernus Rain Pool is a quest-critical control in Veytharion, but it does not work as a simple weather switch from the start of the match. The four-cube wall must be solved first, and the portal revealed by that puzzle must be interacted with before the pool becomes the reliable way to trigger rain.
Rain matters to Black Ops 7 Rex Infernus Rain Pool because multiple Rex Infernus objectives only progress in that weather state. The Woven Sash spawns during rain, every Shadowsmith temple eventually needs a rain finish, and the Corrupted Legacy Weapon wall buys use the rain state as part of their trigger.
Black Ops 7 Rex Infernus Rain Pool: quick answer
- Solve the Veytharion four-cube wall
- Interact with the portal revealed behind the wall
- Find the Rain Pool in Veytharion
- Interact with the pool before changing the round
- Rain should begin on the following round state
- Use rain to search for the Woven Sash
- Repeat the pool interaction when another temple or side quest needs rain
Black Ops 7 Rex Infernus Rain Pool is easiest to handle when you treat the steps above as one sequence rather than separate mysteries. The details below explain where each interaction happens, what actually advances the objective and the mistakes that most often waste a round.
Unlock the pool with the cube-wall portal
The Black Ops 7 Rex Infernus Rain Pool prerequisite is easy to miss because solving the cube puzzle by itself is not enough. The Veytharion wall opens and reveals a portal interaction. Use that portal and listen for the audio response. That interaction registers the weather mechanic for the later quest.
This portal state is also a useful troubleshooting point. If the Nexus generator later refuses to progress during the temple chain, returning to the opened Veytharion wall and interacting with the portal again is a known way to re-register the step.
Black Ops 7 Rex Infernus Rain Pool: Trigger rain on the next round
Once unlocked, Black Ops 7 Rex Infernus Rain Pool is the reliable weather switch. Interact with the pool, then advance the round. Rain can sometimes occur naturally on spider rounds, but waiting for random weather is inefficient and can leave you many rounds behind the quest state you actually need.
A metallic sound at the start of the new round is a useful cue that the rain state has begun. If your objective is the Woven Sash, start checking its off-map spawn points immediately rather than spending the entire rain round on unrelated setup.
What rain is used for
The Main Quest uses Black Ops 7 Rex Infernus Rain Pool repeatedly during the temple cleansing sequence. Each temple eventually reaches a finish where a purple orb is launched into the exterior statue, rain is active and Astral Flame is thrown at the correct target so lightning can strike the temple.
Rain also enables the Woven Sash spawn for Veytharion and can make the Novaline or M10 Breacher wall buy glow after the Corrupted Legacy Weapon prerequisites are met. That means one weather mechanic connects the main quest and two of the strongest side-weapon routes on the map.
What to do when it rains but your item is missing
If Black Ops 7 Rex Infernus Rain Pool has triggered rain but the Woven Sash is not at any of its three known positions, finish the round, allow a clear state and then activate rain again. The item can move between its possible locations on a later weather cycle.
Do not spend a long clear-weather round searching the same ledges. The Woven Sash only appears during rain. Confirm the weather first, then check the three off-map interact points quickly while your grapple is available.
Black Ops 7 Rex Infernus Rain Pool: common questions
Does rain happen without the Rain Pool?
It can, particularly around some spider-round states, but the Veytharion pool is the reliable way to force the weather needed by the quest.
Why does the Rain Pool do nothing?
Make sure the four-cube wall has been solved and, crucially, that you interacted with the portal revealed behind it.
What needs rain on Rex Infernus?
The Woven Sash, the final cleansing stage for the temples and the Corrupted Legacy Weapon wall-buy trigger all use the rain state.
Does rain start instantly?
Treat the pool as a next-round weather trigger. Interact with it, then advance the round and listen for the weather cue.
Black Ops 7 Rex Infernus Rain Pool: what to remember
Black Ops 7 Rex Infernus Rain Pool is one of the most important state controls on Rex Infernus. Unlock it before the temple chain, use it deliberately rather than waiting for random weather, and pair each rain round with a specific objective so you are not wasting the limited window.
The useful way to approach Black Ops 7 Rex Infernus Rain Pool is to follow the live interaction order, watch for the game-state cues described above and retry a failed step on the next round rather than forcing an old or pre-launch solution into the current build.
Official source: Call of Duty official Rex Infernus information.
