Ghost Egg

The Ghost Egg spawns Ghost-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: 
 
 Gastly 
 Misdreavus 
 Duskull 
 Sableye 
 Yamask (Valorian) 
 Drifloon 
 Yamask 
 Frillish 
 Honedge 
 Litwick 
 Golett 
 Phantump 
 Pumpkaboo 
 Sandygast 
 Dreepy 
 Gimmighoul 
 Scorgheist 
 Shuppet 
 Corsola (Galarian) 
 Bramblin 
 Sinistea 
 Poltchageist 
 
 Final Reward Pool 
 If you don't hit the Legendary odds, you'll receive one of these Pokémon: 
 
 Skeledirge 
 Ceruledge 
 Annihilape 
 Dragapult 
 Mimikyu 
 Dhelmise 
 Decidueye 
 Golurk 
 Chandelure 
 Aegislash 
 Spiritomb 
 Dusknoir 
 Mismagius 
 Gengar 
 Sewneater 
 Froslass 
 
 Legendary Rewards 
 If you hit the Legendary odds, you'll receive one of: 
 
 Tangled Time 
 Looming Tune 
 Flutter Mane