The Nimbus is a blue staff which appears to be "weaved" from two intertwining strips of metal; the "weave" separates slightly near the base and above the grip. The head is made of two blue orbs set atop one another, with white feathers attached to the bottom of each. The upper orb is larger than the bottom, and has more feathers around its base.
The Nimbus provides a substantial boost to Natalie's Magic Attack, increases the power of Bubbles (which can be cast by using the Bubble Stone item), and increases her resistance to Fire, Ice, and Water attacks. As it levels up, it begins boosting her HP by a small amount; at Level 3 and above, it enables Natalie to cast Flood with her standard attack.
If Natalie uses Unleash while the Nimbus is equipped, her Evade will be buffed.
Epic Battle Fantasy 3
Found in the secret area of the Rock Lake, which becomes accessible after getting 20 medals.