Precisely, where is the Watt Trader for TM90 Play Rough in Sword/Shield?

Question

I am building a competitive Zacian in Pokemon Sword and I don't have play rough on it and I want it too, and I tried checking serebii but for some reason, my chrome does not respond so I can't check serebii so can someone tell me where one of the raid dens that have fairy type Pokemon that drop the play rough TR in Pokemon Sword pls?

Comments

https://pokemondb.net/item/tr90 this lists its locations.

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I pressed the link but I am too lazy to find the watt trader

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@kiawe the location of the watt trader is not mentioned.

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It changes daily

Answer 1

The Watt Traders have a TR stock of 5 TRs each day. This alternates with the following pattern

The first TR any Watt Trader offers always is between TR00 and TR49 (inclusive), and increases each day (where TR49 becomes TR00), if the game was saved the day before. Within that domain, each Watt Trader's first TR is seven more than the last one's, in the order shown above; e.g., if the Watt Trader at Meetup Spot offers TR00, the one at East Lake Axewell offers TR07, etc.
Any Watt Trader's stock solely depends on the first TR he offers, in the following way:
The second TR is 24 more than the first
The third TR is 42 more than the first
The fourth TR is 67 more than the first (or, if that would result in 100 or more, 100 less than that)
The fifth TR is 96 more than the first (or, if that would result in 100 or more, 100 less than that)

By following this pattern, you will be able to successfully find TR90. The Max Raid Dens that give you Play Rough are any Dens that have a Fairy Type Pokémon in them. It is a Rare Drop after beating a Den, so if you find a 3 Star or higher Raid Den that has a Fairy Type, you have a high chance of finding it. These are in Bridge Field and the Lake of Outrage in Sword.

Source: https://m.bulbapedia.bulbagarden.net/wiki/TR90
https://m.bulbapedia.bulbagarden.net/wiki/Watt_Trader
https://gamewith.net/pokemon-swordshield/article/show/13835