Aries- Bombarda maxima: creates an explosion

Taurus- Imperio: controls the opponent

Gemini- Silencio: mutes opponent

Cancer- Protego: barrier that offers protection

Leo- Expelliarmus: disarms the opponment

Virgo- Episkey: heals wounds

Libra- Cantis: makes the victim sing uncontrollably 

Scorpio- Adava Kedavra (of course): Kills the opponment

Sagittarius- Alohomora: Unlokc doors

Capricorn- Reparo: repairs broken things

Aquarius- Aparecium: makes invisable ink

Pisces- obliviate: erases memory