Crossbow with prototype number 89 stamped on its body.
You can tell the power by the number on the dashboard after you shoot the bow.

ATK +3%.

Refine Level +7, increases long ranged physical damage by 7%.

Refine Level +9, reduces after skill delay of Severe Rainstorm by 2 seconds.

Refine Level +11, increases Severe Rainstorm damage by 15%.

[iRO Description]
A crossbow with its prototype serial number, 89, imprinted on it.
It's equipped with a meter to display shooting power as a numerical value.
Class: Bow
Attack: 170
Weapon Level: 4
Requires Level: 130
Usable By: Minstrel, Gypsy
Atk +3%
If upgrade level is +7 or higher,
Increases long-ranged physical damage on targets by an additional 7%.
If upgrade level is +9 or higher,
Severe Rainstorm cooldown -2 sec.
Reduces the cooldown of Severe Rainstorm by 2 seconds.
If upgrade level is +11 or higher,
Increases the damage of Severe Rainstorm by 15%.