Ground Egg

The Ground Egg spawns Ground-type Pokémon around you for 5 minutes. Catch as many as you can to charge the egg and improve your final reward. 
 Spawns 
 The following Pokémon will spawn around you during the egg: 
 
 Sandshrew 
 Diglett 
 Baltoy 
 Diglett (Alolan) 
 Geodude 
 Cubone 
 Rhyhorn 
 Wooper 
 Wooper (Paldean) 
 Gligar 
 Swinub 
 Phanpy 
 Larvitar 
 Trapinch 
 Gible 
 Drilbur 
 Golett 
 Mudbray 
 Silicobra 
 Toedscool 
 
 Final Reward Pool 
 If you don't hit the Legendary odds, you'll receive one of these Pokémon: 
 
 Clodsire 
 Ursaluna 
 Torkoal (New Form) 
 Palossand 
 Golurk 
 Krookodile 
 Excadrill 
 Gliscor 
 Mamoswine 
 Rhyperior 
 Garchomp 
 Torterra 
 Flygon 
 Swampert 
 Steelix 
 
 Legendary Rewards 
 If you hit the Legendary odds, you'll receive one of: 
 
 Groudon 
 Ting-Lu