Crystal King

The Crystal King was the enemy Mario had to face before Bowser and he also guarded the last Star Spirit, Kalmar. The Crystal King's body is invisible and he can also make his cloak and crown invisible too. Crystal King can fly, summon Crystal Bits and shoot ice beams. When he gets desparate he begins cloning himself and recovering HP, when Mario defeats him he disappears.

Fake Crystal Kings
Clones of the Crystal King they can float and combine their attacks with the real deal to blast Mario with a blizzard.

Crystal Bits
Creatures made by the Crystal King he can absorb them and fire them at Mario. They are extremely weak and one hit should probably kill them.