0272 Ludicolo

Razor Leaf takes advantage of STAB to deal large amounts of damage without worrying about being shielded. Unfortunately it also has the worst energy generation in the game. 

Ice Beam offers good coverage, and is almost mandatory due to its energy cost being significantly cheaper than the rest of Ludicolo's charge moves. Hydro Pump, Blizzard, and Solar Beam all demand incredible amounts of energy for their usage, which may be unrealistic due to Ludicolo's lack of significant energy gains. Any of these options could be viable (though Blizzard is somewhat redundant due to Ice Beam), but don't expect to use them often, if at all. Leaf Storm could be chosen as a last stand move, since its lesser energy cost makes it more accessible than other options but is riskier with its self-debuff. 

Some matchups might be favorable with Bubble, not only from a typing perspective, but also partly due to greater energy gains which are necessary for Ludicolo's costly charge moves. The addition of Energy Ball from the April 2020 rebalance improves Ludicolo's overall viability due to its other charge moves being incredibly costly (energy-wise). Leaf Storm could also be chosen for a stronger play when shields are limited or non-existent, as its extraordinary damage output is offset by its harsh self-debuff. 

Ludicolo is as interesting in PvP as his dance moves are, featuring well-rounded stats, a slow moveset, and most importantly a Grass/Water typing. This unique typing is quite synergistic, eliminating Water's weakness to Electric and Grass, while removing Grass's weakness to Ice and Fire. This typing plus Razor Leaf also makes Ludicolo a very hard counter to most other Water-types, many of which are present in the meta. Unfortunately a very cumbersome moveset holds Ludicolo back from applying any significant shield pressure. Overall mostly a niche pick, and while this pineapple duck doesn't exactly win most matchups, it definitely wins when it comes to its dancing! 

With a max CP of 2323 Ludicolo falls a bit behind from a stats perspective for Ultra League. To add more salt to the wound, Ludicolo's typing and movesets aren't really made for Ultra League due to the dominance of Giratina. 

Ludicolo isn't meant for Master League, largely due to a lack of stats. Relatively comfortable wins against Groudon, Kyogre, and Swampert are to be expected due to typing advantages, but Ludicolo isn't dancing its way to victory much with tons of legendaries in this league.