Notes:

Madoka
Dragonite, Togekiss, and Vivillon: Cute, fluffy buttkicker
Delcatty: The cat from the OP
Chandelure: Disappears after the series
Diancie: Madokami
Homura
Klinklang: Gears
Aegislash: Her shield
Alakazam and Lucario: Psychic Powers
Meowstic: Appearance
Absol: Unwanted bringer of bad news
Sayaka
Gallade: Swords
Milotic: Mermaid theme
Wailord: High HP
Slowbro: Regenerator
Kriketune: Violins
Salamence: Contrasts Kyoko/Garchomp
Kyoko
Snorlax: Big eater
Escavalier: Uses a lance
Toxicroak: Uses unorthodox tactics
Electrode: How she defeats Oktavia
Gyarados: General Fierceness
Garchomp: Contrasts Sayaka/Salamence
Mami
Goodra/Blissey: General appearance
Miltank: ahem
Slurpuff: Charlotte/Bebe/Nagisa
Magmortar/Blastoise: Guns