The Crystal Storm is a Hardmode / pre-Hardmodemagic weapon that quickly fires a slightly spread flood of tiny, bouncing crystals. The crystals are not affected by gravity, and last about three seconds each, losing velocity until gradually dissipating in midair. Their speed or fade at impact does not affect their damage output. The crystals also provide a small amount of purple light.
Liquids will slow Crystal Storm projectiles, even after they exit the liquid body.
Its projectiles cannot pierce multiple targets, though its dense fire rate may cause the illusion that they are.
Although its projectiles do not deal much damage individually, they overwhelm enemies with their quantity, and have enough knockback to keep crowds at bay.
The Crystal Storm may be preferable to the Magical Harp when piercing and repeat hits are not needed.
While being useful early Hardmode, it is generally ineffective against any Hardmode bosses.
Unlike most ricocheting projectiles, these crystals make no sound when bouncing off objects.
Since version 1.2.3, Crystal Storm cannot have any modifier that modifies its mana cost by 10% or less, such as Celestial, Manic and Mythical. A Crystal Storm that obtained such a modifier prior to 1.2.3 will have a new random modifier chosen again automatically after the upgrade to 1.2.3, as that patch brought a reduction in mana cost that renders those modifiers incompatible.
As of version 188.8.131.52, Crystal Storm can have the Celestial, Manic and Mythical modifiers, as its mana cost has been raised to 5 again.
The initial spin of the projectiles is determined by the angle in which they are fired. When fired horizontally in either direction, the projectiles spin very rapidly. Conversely, firing straight up or down will yield little to no spin.