The Rainbow Rod is a Hardmode, post-The Twins wand. When used, it fires a rainbow missile that follows the cursor when ⚒ Use / Attack key is held. If the ⚒ Use / Attack key is released mid-drag, the missile will be fired in that direction. If the cursor is stationary on release, it is fired directly away from the player. Once it is released, the missile homes in on nearby enemies and can pierce twice, creating a small explosion upon contact with a block or third enemy. The missile does not dissipate when touching a block while being controlled, and is not affected by liquids (unlike the Flamelash).
Its best modifier is Mythical.
Crafting
Recipes
Notes
- The mana cost is for the initial casting only. Maintaining and directing the missile does not cost additional mana, and the player will regenerate mana while controlling it.
- The projectile applies 12 ticks[1] of local immunity frames upon hit.[2]
- Once released, the projectile can home in on targets within a 50-tile radius.[3]
- When the projectile is destroyed, its resulting explosion covers a 8×8-tile square centered on the point of impact.[4]
- The Rainbow Rod's projectile can move at a top speed of 164 mph.[3]
- The projectile's speed is halved in water or lava (82 mph), and quartered in honey (41 mph).
Hovering over any slots in the inventory (should it be open) will cause the loss of control of any controlled projectile, flinging it forwards in the direction the cursor was last moving.
Opening the inventory (and then closing it in singleplayer) will make it fling in the direction the player's finger was moving.
Achievements

Prismancer •
“Obtain a rainbow rod.”Obtain the
Rainbow Rod.
(Desktop, Console and Mobile versions)Category:

Collector
Tips
- As the missile emits light and can be controlled, this weapon is a good exploration tool.
- Due to the Rainbow Rod's high damage output and homing effect, it can be useful when fighting Hardmode bosses such as Skeletron Prime and Plantera.
Gallery
The Rainbow Rod being directed by the mouse cursor.
History
- Desktop 1.4.0.1:
- Projectile appearance updated.
- Projectile moves much faster.
- Projectile now homes into enemies upon being released.
- Projectile now pierces two enemies before exploding.
- Projectile now produces a small area-of-effect explosion on impact.
- Damage decreased from 74 to 50.
- Use time increased from 18 to 25.
- Mana cost increased from 18 to 21.
- Can now touch tiles without exploding.
- Desktop 1.2.3:
- Base damage raised from 53 to 72.
- Mana requirement raised from 10 to 18.
References
- ↑ A tick is a time unit countable by the software. Most of Terraria's updating logic happens every tick. A tick has the length of 1/60th of a second, hence there are 60 ticks in a second and 3600 ticks in a minute.
- ↑ Information taken from the
Desktop 1.4.4.9 source code, method SetDefaults() in Terraria.Projectile.cs.
- ↑ 3.0 3.1 Information taken from the
Desktop 1.4.4.9 source code, method AI_009_MagicMissiles() in Terraria.Projectile.cs.
- ↑ Information taken from the
Desktop 1.4.4.9 source code, method Kill() in Terraria.Projectile.cs.
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