Natures are part of what makes each Pokemon unique. Twenty different natures will increase one base stat by 10% while simultaneously decreasing another base stat by 10% – and another five natures do nothing to the Pokemon’s base stats. The nature can be found on each Pokemon’s first summary screen, and the stats appear on the second summary screen. The base stat in red is the boosted stat, while the stat in blue is the reduced stat.
Many Trainers take advantage of natures and the stat increase they offer. Search for a Pokemon with a specific nature to boost their best stat while reducing their worst stat. A perfect example is Alakazam with a modest or timid nature; this decreases the attack stat and increases the special attack stat or speed stat respectively. Alakazam excels in special attack and speed, but they don’t use the attack stat at all.
Natures are randomly applied to wild Pokemon, which means you will have to capture a large number of the same species to get the right nature. The same goes for any Pokemon received as a gift.
In Let’s Go Pikachu and Let’s Go Eevee, speak with Madam Celadon in the Celadon City Pokemon Center to set the nature of all wild Pokemon until midnight (using the Nintendo Switch clock). This service will cost P 10,000. She will ask you to choose one flower to water and one to thin out. The colors represent the six base stats they will increase and decrease.