Galarian Weezing

Galarian Weezing's introduction to Pokemon Go caught many by surprise. There was no official announcement ahead of time, nor did anyone have experience with it from the main series because Sword & Shield was released right around the same time. A unique Fairy/Poison typing is interesting, but a closer look at Galarian Weezing's poor stats and pitiful moveset leaves a lot to be desired. 

Best PvE Offensive Moveset

• Fairy Wind synergizes well to enable Galarian Weezing for a budget Fairy-type role. 
• Tackle is a pretty bad move. 
• Play Rough takes advantage of STAB to offer the most damage output in general. 
• Sludge isn't great even with STAB, but it's good vs Grass and Fairy Pokemon.
• Brutal Swing is objectively great, but it doesn't have much synergy with Galarian Weezing.
• Overheat is a powerful move, but doesn't have any synergy nor STAB. 
• Hyper Beam can't be Super Effective against anything. TM this. 

Best PvE Defensive Moveset

• Fairy Wind is the fast move of choice due to its higher damage output, especially with STAB.
• Tackle can still work okay if you want to use Play Rough.
• Brutal Swing has an early damage window, great neutral coverage, and is a 3-bar move, making it the defensive Charged Move of choice.
• Acid is very similar after STAB is factored in, but is more widely resisted. 
• Play Rough has a very similar early damage window, but is used less frequently as a 2-bar. At least it hits harder. 
• Overheat is less likely to be used before Galarian Weezing faints, and is quite easy to dodge. But if it lands it could KO Steel-type attackers. 
• Hyper Beam is way too slow to be useful for defense. 

Fairy Wind is a strong Fast Move with great neutral coverage and outstanding energy generation, making it the Fast Move of choice. This pairs with Brutal Swing's decently high power, great neutral coverage, and extremely low energy cost for quick barrages of Dark Type damage. Brutal Swing also pairs with Play Rough for an occasional high-power blow after a bait, or Overheat to potentially nuke Galarian Weezing's would-be counters. Sludge can see play in certain metagames where Fairy-type coverage is appreciated, but it is often underwhelming.