Baseball onyx
From Twilight Heroes Wiki
baseball onyx
Plural: Unknown; currently impossible to determine
Onyx grow to up to twenty-eight feet long and can evolve into... an item that makes players better at stealing bases? This stuff got weird while I wasn't paying attention.
Offhand Item
Level Required: 4
Item cannot be traded or sold
Item cannot be auto-sold
Increased chance of noncombat adventures.*
* Combat and noncombat chances can only be increased up to a maximum of 20% in either direction.
How Obtained
Final reward for getting all 27 "outs" in Frank's Ballpark XX.