Five projectiles roam around the impact location, damaging enemies as they wander by. They will self-terminate after a few seconds.
Projectiles pass through the terrain as well as through tanks.
There isn't a specific strategy on how to use travelers, but they are best suited to be fired in areas with several enemies clustered together. Can also be used against enemies leaning closer to the edge walls, as the arrows will cut through them additional times, further increasing the dealt damage.
The pattern is random. If you are lucky or get a good RNG matchup, you will end up having many of the projectiles scratching throught the enemies hitpoints and armor.
Releases additional travelers once the main bunch is settled. They will have a lime green trail instead of yellow, and will behave identically to the standard version, roaming around and dealing damage they come in contact with as they go by.