Pelipper

Pelipper has an unfavorable stat spread and typing, making it unoptimal for most uses. Pelipper’s unique ability in the main series games is to make it rain, which it cannot do in GO (but would've been super cool).

Best PvE Offensive Moveset

• Water Gun is best paired with Weather Ball Water for maximizing STAB damage against types weak to Water.

• Wing Attack and Hurricane are best paired for STAB damage against types weak to Flying.

• Hydro Pump is a step down due to its less consistent performance as a 1-bar move. 

• Blizzard is the worst of Pelipper’s three 1-bar charge moves due to lack of STAB.

Best PvE Defensive Moveset

• Wing Attack does slightly more damage than Water Gun.

• Weather Ball Water is the best charge move for defense due to its frequent use as a 3-bar move. 

• Hydro Pump is powerful and hard to dodge, but Pelipper might faint before being able to use it. 

• Blizzard has good coverage but is easier to dodge compared to Hurricane.

Wing Attack provides Flying-type coverage and is generally preferred over Water Gun due to its superior energy generation, though the latter offers stronger damage output and Water-type coverage. 

Weather Ball is Pelipper's primary charge move due to its low energy cost and its efficient Damage Per Energy (DPE). Hurricane is generally chosen for its lesser energy cost compared to Blizzard, but the latter can be elected for its wide coverage.