This seems to be a now-extinct fish. Its body is sufficiently elastic that a string may be attached to it to let it serve as a bow.

R1: Net Snapper

Triggers the Flowrider effect after using an Elemental Skill, dealing 80% ATK as AoE DMG upon hitting an opponent with an attack. Flowrider will be removed after 15s or after causing 3 instances of AoE DMG. Only 1 instance of AoE DMG can be caused every 2s in this way. Flowrider can be triggered once every 12s.

R2: Net Snapper

Triggers the Flowrider effect after using an Elemental Skill, dealing 100% ATK as AoE DMG upon hitting an opponent with an attack. Flowrider will be removed after 15s or after causing 3 instances of AoE DMG. Only 1 instance of AoE DMG can be caused every 2s in this way. Flowrider can be triggered once every 12s.

R3: Net Snapper

Triggers the Flowrider effect after using an Elemental Skill, dealing 120% ATK as AoE DMG upon hitting an opponent with an attack. Flowrider will be removed after 15s or after causing 3 instances of AoE DMG. Only 1 instance of AoE DMG can be caused every 2s in this way. Flowrider can be triggered once every 12s.

R4: Net Snapper

Triggers the Flowrider effect after using an Elemental Skill, dealing 140% ATK as AoE DMG upon hitting an opponent with an attack. Flowrider will be removed after 15s or after causing 3 instances of AoE DMG. Only 1 instance of AoE DMG can be caused every 2s in this way. Flowrider can be triggered once every 12s.

R5: Net Snapper

Triggers the Flowrider effect after using an Elemental Skill, dealing 160% ATK as AoE DMG upon hitting an opponent with an attack. Flowrider will be removed after 15s or after causing 3 instances of AoE DMG. Only 1 instance of AoE DMG can be caused every 2s in this way. Flowrider can be triggered once every 12s.