Turtwig

Turtwig has a distinct niche in Little Cup with its great defensive stats, pure Grass typing, and access to Stealth Rock. It has a good matchup against a variety of spinners such as Drilbur and Staryu, allowing it to keep entry hazards up against a variety of teams. Turtwig also has access to reliable recovery in Synthesis, which lets it stay healthy enough to switch into threats throughout the match. However, Turtwig has a bad defensive typing with weaknesses to common types such as Fire, Flying, Poison, and Ice. It is also extremely slow, being outsped by most of the metagame, and struggles against common Defoggers such as Vullaby and Stunky, as it has no way to deal sufficient damage to them. A limited offensive movepool makes Turtwig very passive, meaning it struggles against many Pokemon it can't hit for super effective damage and gives them many opportunities to set up. Finally, Turtwig faces competition from other Stealth Rock setters and is hopelessly outclassed at any other roles it could try.