Mysteryegg

Mysteryegg is a new Pokemon that exists in Snakewood. It evolves into Secretegg starting at level 30, which evolves into Hyperegg starting at level 43. It is a Normal/Bug type with the ability Shell Armor. Defeating it yields 1 HP EV. After evolving into a Hyper Egg, it can evolve into an Unown with a Moon Stone, an Entei with a Fire Stone, a Suicune with a Water Stone, a Raikou with a Thunder Stone, and a Celebi with a Leaf Stone.

Pokédex Entry
Type: EGG Color: Gray Height: 0.9m or 2'11" Weight: 16.0 kg or 35.3 lbs.

It isn't ready to hatch out from its egg yet, however unlike most eggs, it can fight.

Locations
Mysteryegg hatches from the egg received from Professor Birch in Route 103.

Held Items

 * Eggs don't hatch with items.

Tips
Mysteryegg eventually evolves into powerful pokemon, but prior to evolution it is very weak.