Suggested by @Vixen_Wolfe_04

Aries- Ender Dragon

Taurus- Enderman

Gemini- Zombie Pigmen

Cancer- Spider Jockey

Leo- Spider

Virgo- Skeleton

Libra- Slime

Scorpio- Wither

Sag- Creeper

Capricorn- Blaze

Aquarius- Zombie

Pisces- Ghast