Kageboshi Imbued with energy from another place, the blade will pierce through any foe.

Tier UT
On Equip +2 DEF, +5 VIT
While Key Held MP Cost: 10 MP/sec
Green Up Arrow Speedy on self
When Key Released MP Cost: 80
Damage: 414-506 (average: 460)
Projectile Speed: 14 tiles/second
Range: 8.4 tiles
Piercing Shots hit multiple targets
Passes cover Shots pass through obstacles
XP Bonus 8%
Soulbound Soulbound
Feed Power 800

Loot Bag Assigned to White Bag
Drops From Jade and Garnet Statues
The Keyper

This star sacrifices quite a bit of damage and range for piercing and a lower MP cost. Because of this, it is not as practical as a tiered star would be in many situations. However, it can be useful when it is difficult to directly hit a specific target due to surrounding minions, like in the Wine Cellar, Cube God, Skull Shrine, Septavius’ first phase, and clearing dungeon minions, similar to a quiver. It is pretty much an extra katana shot with a bit more range and damage.
Additionally, the extra 2 defense is useful as a passive bonus for situations where the additional damage of a star isn’t as necessary.

Its name roughly translates to “Shadow Star” in Japanese. (影星)