Thunder Zapper

Type	Weapon
Damage	20 (Magic)
Knockback	3 (Very weak)
Mana	7
Critical chance	4%
Use time	17 (Very fast)
Velocity	16 (effective)
Rarity
Sell	30
Research	1 required
Use	https://terraria.wiki.gg/wiki/File:Item_43.wav

Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.

The Thunder Zapper is a Desert-themed magic weapon obtainable in pre-Hardmode. It is found in Sandstone Chests in the Underground Desert or in Oasis Crates obtained from fishing in the Oasis. When cast, it launches a fast-moving, non-piercing projectile that is unaffected by gravity and will disappear with a visual explosion that does no damage after traveling for about one second or when hitting a solid block. The projectile moves up and down in a randomized zig-zag pattern horizontally, but not vertically (traveling straight when shooting directly up or down).

Its best modifier is Mythical.

Tips

Due to the medium mana cost and the very fast speed at which it auto-casts, it can be seen as an alternative to the gem staves, doing similar single-target DPS to the highest-tier staves. However, it lacks piercing against multiple targets, and requires visiting a dangerous biome. It can more safely be obtained from fishing in an Oasis.
The zig-zag motion of the projectile facilitates some unusual trajectories, e.g. through a half-tile gap.