Sword/Shield Fishing RNG


This section explains how to RNG abuse Pokémon from Fishing encounters on retail hardware. It covers the entire process, from choosing a location to obtaining the desired Pokémon.

From here it is assumed that you have read the initial page of this guide and have a general idea of how to use SWSH OWRNG Generator GUI, as well as understanding how to find and monitor your seed.

Picked the wrong type of encounter? Click here to go back!
About Symbol Encounters:

Fishing encounter are encounters initiated by using a rod in a body of water, like Symbol encounters, these are NOT guaranteed to produce the same species every time, the species is instead derived from the encounterslot value (0-99), the Pokémon that occupy encounterslots will vary depending on weather and location.

The internal details of a fishing encounter are determined when the fishing pool is spawned in the overworld, not upon hooking the Pokemon on the fishing rod, this means that the goal is to spawn the fishing pool on the correct frame.

Brilliant Aura Mechanics

Fishing encounters can potentially spawn Pokémon with Brilliant Aura, which boosts the amount of guaranteed max IVs the Pokémon will have. Players searching for high IV targets may opt for manipulating Fishing encounters for this purpose.

Brilliant Aura Pokémon can also have increased shiny odds, which is based on the Pokedex KO count. This value can be seen by viewing the Pokedex entry of any Pokémon. Bulbapedia contains useful information about the increased rates.

For maximum optimization with this encounter type, it is recommended to have access to the Shiny Charm and have 500 KOs on the Pokémon you are hunting, this is a time consuming process however.

Dex Recommendations & Ability Boosts (unsupported)

Dex recommendations can be found by opening the Pokedex, when a Pokémon is recommended the encounterslot value for that specific Pokémon is boosted. Storm Drain, Lightning Rod & Harvest abilities will also boost the encounterslot value of Pokémon of the corrisponding type (e.g Harvest boosts grass types).

Neither of these boosting methods are supported in the RNG tool at this point in time, avoid using them as this will produce inaccurate results.


With all the required reading out of the way, begin by configuring the RNG tool and standing in the correct position in-game.

Figure 1 - Tool setup



Tool Setup:
  1. Open SWSH_OWRNG_Generator_GUI, then type your 5 digit TID/SID into the correct fields of the main window (for shiny Pokémon only).
  2. Open the Encounter Lookup sub window, then type the species name of the Pokémon you plan to RNG abuse, select an appealing fishing encounter.
  3. Confirm that the filters have been set properly inside the Main Window, encounter filters can be found on the left-hand side.
  4. Set the correct KO count inside the assigned field on the left, this should match the value displayed by the Pokedex for the Pokémon being hunted.
  5. Set your search filters inside the middle portion of the Main Window. You can filter for specific Marks, IVs, Shininess, etc.
Example - Encounter Lookup specifies Slumbering Weald in normal weather for Whiscash, this information has been automatically filled inside the main window. The KO count for Whiscash according to the Pokedex is 500, and the search filters were also manually configured to search for a Shiny with any mark.

Figure 2 - Game setup



Game Setup:

For Fishing encounters, stand directly next to a fishing pool in the area that contains your desired Pokémon. Avoid areas that trigger other Wild/Static spawns where possible. Figure 2 is provides an example of ideal placement.

Slumbering Weald is notably "quiet" in calm weather. Advancement speed is based on location, NPC count, and weather. The more quiet the area, the slower the natural advancements are, and the easier it will be to hit your target frame. Avoid rain or thunderstorm weather as this will create instability due to erratic advancements.

If you can't find a good spot, knock out any static spawns blocking your path. They will remain despawned until you return to the area after a date change.

Figure 3 - Seed identification



You cannot search for targets without knowing your current seed. This is achieved by using the Retail Seed Finder window, usage of this window was covered on the main page.

Figure 4 - Target found!



Target Found!

After identifying seeds using the Retail Seed Finder, a Shiny Whiscash can be found on advance 792-801. Target frames can often appear in clusters, which are multiple frames in a row (or close to each other) that produce the same end result.

Due to having multiple frames that can potentially produce your desired Pokemon, searching for clusters is ideal. You may wish to keep searching for target frames until a cluster appears.

Undesirable result?
  1. Save in the correct position, then close and re-open the game to refresh the seed.
  2. Identify the seed again using the Retail Seed Finder feature.
  3. Search for a new target frame, repeat this process until a desirable result has been found.
Keep the game paused after finding a desirable target frame to avoid any unwanted advancements, as this may cause you to overshoot your target frame depending on location.

After standing in a suitable position and finding a desirable seed, calibrate your NPC count using the method described on the main page. Take note of the NPC count after doing so.

Trouble calibrating seed or NPC count? Go back to the main page!

Advancing Towards the Target!


You may need to calculate the rough delay for the encounter. Doing this step will provide the best possible chances of hitting your target frame. Delay is the difference in advancements between spawning the Pokémon in the overworld and the actual frame the Pokémon was generated on.

Delay Calculation

If you have been following along you should now be stood in the correct position in-game, have calibrated your NPC count, and know your current seed.

Step-by-step:
  1. Unpause the game and mount your bike to despawn the fishing pool, dismount the bike then pause the game with the fishing pool despawned.
  2. Re-identify the current seed, click the Update States button on the main window after doing so, then open the Menu Close Advances Viewer sub window.
  3. Type the number of NPCs into the NPCs field, then search. Take note of the amount of frames that will be consumed from closing the pause menu (inside the Jump column).
  4. Unpause the game, wait until a fishing encounter spawns in the water, then initiate the encounter and capture it. Use an IV calculator to determine the IVs.
  5. If the Pokémon encountered does not match your target species, use the Encounter Lookup to fill in the details of the Pokémon you encountered. Remove any active search filters and enter the correct KO Count after doing this.
  6. Find the advance that generated the Pokémon in the search results, then subtract the amount of frames that were consumed from the pause menu. This will be the delay for this encounter.
Example - If the Pokémon was generated on frame 10, and 7 frames were consumed from closing the pause menu, this means the delay for this encounter is 3.

At this stage you should be standing in the correct position in-game, have a suitable target frame, and know the current NPC count.

Hitting Your Target Frame:
Step-by-step tutorial:
  • Advance towards your target frame using any method listed inside the advancement table on the main page. Consider date-skipping for long distance-advancements.
  • Return to the correct position in-game once you are within a few thousand advances of the target frame. This will ensure that you do not overshoot when doing quick advancements.
  • Once you have relocated next to a fishing pool, mount your bike to despawn it, then dismount and quickly pause the game with the fishing pool despawned.
If the weather condition does not match the conditions to spawn your Pokemon, change the date on your console BACKWARDS until the correct weather is displayed on the map. Changing the date backwards will avoid unwanted advancements.
  • Re-identify your current seed, then click the Update States button to reflect the new RNG state inside the main window and search for your target again.

  • Subtract the delay from the actual target frame (e.g 1000 (target) - 3 (delay) = 997) this will set the new target frame and this will be the frame to spawn the fishing pool.
  • Open the Menu Close Advances Viewer tab, and enter the number of NPCs calculated earlier into the NPCs field, then click Search.
If you can see your target frame(s) within the Menu Close Advances Viewer search results, great! This means menu close prediction can be used to hit your target frame with no extra issues and the next two steps can be skipped.
  • If you do not see your target frame in the search results, increment the number inside the Init Adv. field by 1, repeat until the target frame is visible.
  • Perform some animation advancements according to the number inside the Init Adv. field. For example, do 5 advancements if the number inside the field is 5.
In extreme cases you will not be able to reach your target frame using menu close prediction. To counter this, aim to get as close as possible to your target using menu close prediction, then use player movement advances to hit your target frame.
  • Do animation advancements until a single menu close lands you onto the target frame, avoid using menu close to reach this point as it may spawn a fishing pool at the wrong time.
  • Unpause the game, then wait a few seconds for a fishing pool to spawn and reel in the encounter to confirm the result matches what is expected.

Figure 5 - Target Frame Hit!



By using menu close prediction and animations to keep track of inputs/advancements, we were able to hit out target frame.

Figure 6/7 - Result Found!





The Whiscash matches what is expected by the tool, you should now understand how to RNG abuse Pokémon from Fishing encounters.

If you are having trouble hitting target frames, this could mean that the delay is not correct, or too much time was taken when spawning the Pokemon in the overworld. Click the button below for further assistance with encounter troubleshooting.

Having trouble finding results? View the Troubleshooting Encounters guide!