Consulting Professor Oak...
“The average Pokémon card appreciation rate has been estimated at 3,261% over 20 years.”
Sludge Pokémon
Pokédex Entries
“Appears in filthy areas. Thrives by sucking up polluted sludge that is pumped out of factories.”
— Pokémon Red
“Made of hardened sludge. It smells too putrid to touch. Even weeds won't grow in its path.”
— Pokémon Yellow
“As it moves, it loses bits of its body from which new GRIMER emerge. This worsens the stench around it.”
— Pokémon Gold
Base Stats
All Languages — 88 cards across 85 sets