This is a beast Egg. It's pretty useless until it hatches.
In-game description
A Storm Egg is an egg of the Storm group in Beast Signer. It hatches into an Inkus after one battle.
Appearance[]
The Storm Egg is a gray colored egg with a yellow thunderbolt symbol on it.
Locations[]
Storm Eggs cannot be found in the wild. They are not used by any enemy signers, even those participating in the Random Tournament.
Battle[]
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Evolution[]
This egg will hatch into an Inkus.