Magical Crystals

Craft an amethyst shard with one lapis lazuli, one raw copper, one blaze powder and one oak leave block to get a "Boring Crystal". Use it to infuse it with either lightning, fire, water or earth. Each of them grant powerful abilitys to the player using them.

• Lightning Crystal:
  Right click to summon a lightning that doesn't cause any damage
  Punch a mob to strike it with lightning
  Hold it in your hand to get a speed boost

• Fire Crystal:
  Right click to summon a fireball. Punch it to shoot it in the direction you are looking.
  Punch a mob to set it on fire
  Hold it in your hand to get a strenght boost
  
  
• Water Crystal:
  Right click to place a water source at your feet
  Punch a mob to freeze it for 3 minutes, resulting in it not being able to move
  Hold it in your hand to get fire resistance and dolphin's grace
  
  
• Earth Crystal
  Hold the left click button to summon falling dirt 100 blocks above you
  Punch a mob to summon a falling dirt 1 block above it
  Hold it in your hand to get a haste effect