0685 Slurpuff

Charm takes advantage of STAB to deal significant damage, though its energy generation is the lowest in the game. Fairy Wind offers an option to sacrifice damage output in favor of energy generation, but Slurpuff's Charge Moves are all moderately costly to use. Tackle is a poor move. 

Flamethrower is a useful coverage move that's valuable against common Steel-types in the meta, though its moderate energy cost makes it difficult to access. Energy Ball isn't particularly valuable against Slurpuff's weaknesses, but Grass-type coverage is welcome in a meta that consists of common Water-types. Play Rough is considerably stronger than Draining Kiss at the cost of 5 more energy, and hits hard with STAB but doesn't provide any additional coverage. 

Slurpuff's performance is comparable to that of Clefable and Aromatisse, with almost identical bulk and similar access timings to charge moves. Fairy-typing can be valuable against common Fighting-types, Dark-types, and Dragon-types (mostly Altaria), though Slurpuff's poor energy generation and costly charge moves makes it difficult to apply shield pressure compared to other meta Pokemon. Slurpuff's high damage output from its fast moves can allow it to win matchups against opponents with poor bulk, which is more emphasized when Slurpuff can utilize both shields. 

Slurpuff requires XL candy to perform optimally in Ultra League, making this Pokemon rather expensive to prep for this format. Due to the greater CP cap of this league, Pokemon generally have access to more bulk, which means there are fewer squishy opponents for Slurpuff to beat down with Charm. Clefable by comparison generally performs better here due to its slightly superior bulk, and actually wins against Slurpuff in an even fight by only using fast moves. Overall Slurpuff is somewhat of a downgrade compared to other Charmers, but still viable for the Fairy-type role. 

Slurpuff would be a delicious treat for the Pokemon competing in Master League. Dragonite still loses if Hurricane is shielded, but Garchomp can go straight Earthquake to win the 0-shield and 1-shield fight.