Credits - Bulbapedia

How to Evolve Petilil in Pokemon Scarlet and Violet
A guide on Evolving Petilil in Pokemon Scarlet and Violet

Petilil is a charming little grass-type Pokemon that has made its way into the hearts of many players in Pokemon Scarlet & Violet. It is a cute and unusual Pokemon with high Special Attack and Speed stats, making it a popular choice for players who want to use it in battles. Petilil is an excellent choice for early-game battles as it can quickly defeat opponents with its unique moves.

To evolve Petilil into Lilligant, players will need to use a Sun Stone. Sun Stones are readily available in Pokemon Scarlet & Violet, and players can purchase them from vendors in various cities throughout the game. Once players have acquired a Sun Stone, they can evolve Petilil anytime without meeting any level or move requirements. This makes the process of developing Petilil into Lilligant easy, and players will be able to enjoy the benefits of having a Lilligant in their party in no time.

Lilligant is a hybrid threat that can be useful in various situations. In the early game, it can use powerful moves like Leaf Storm and Petal Dance to defeat opponents quickly. Leaf Storm is a powerful grass-type move with a high power level and low accuracy, while Petal Dance is a dance-based move that attacks opponents multiple times and confuses the user after it is finished. These moves are perfect for players who want to defeat opponents quickly early in the game and make their way through the game’s story mode.

Hisuian Lilligant, a variant of Lilligant, is not currently available in Pokemon Scarlet & Violet. However, data miners have found evidence indicating that it has already been programmed into the game and may be introduced in the future. Hisuian Lilligant is a unique variant of Lilligant with a different appearance and unique abilities. Hisuian Lilligant may be added as part of a DLC release or a special Tera Raid event. This will give players a chance to experience a new and exciting Pokemon, and players will be able to use it in their parties for battles.

Regarding overall usefulness, Lilligant is a good Pokemon in story mode and double battles. In ranked double battles, Lilligant is similar to Venusaur with its Chlorophyll ability and Sleep Powder. Chlorophyll is an ability that doubles the Pokemon’s Speed stat in sunny weather. At the same time, Sleep Powder is a move that can put opponents to sleep, allowing Lilligant and its partner to attack without being hindered by the opponent. Lilligant also has a unique set of supporting moves, such as After You, Pollen Puff, and Encore, which make it a valuable asset in double battles.

However, Lilligant is less effective in single battles and struggles in high-level Tera Raid battles than Pokemon like Arboliva, Rotom-Mow, or Tsareena. Lilligant is a grass-type Pokemon that is susceptible to fire, ice, and poison-type moves. It may struggle against opponents who have these types of moves in single battles, and in high-level Tera Raid battles, it may not withstand the powerful attacks of other Pokemon. Players who want to use Lilligant in these types of battles may need to train it up and equip it with the right moves and abilities to make it a viable option.

In conclusion, evolving Petilil into Lilligant is an easy process that requires simply using a Sun Stone. Lilligant is a valuable Pokemon in story mode and double battles, especially in ranked double battles where it can fill a similar role as Venusaur. While it may struggle in high-level Tera Raid battles, Lilligant is still a valuable addition to any battle party. The variant of Lilligant, Hisuian Lilligant, has yet to be released in Pokemon Scarlet & Violet, but evidence suggests that it may be added in the future.