Editing Pokémon (section)

==== Retreat ====
To retreat your active Pokémon and exchange it with a benched one you have to pay the retreat cost in the lower right corner. By paying I mean discard the energy attached to the Pokémon equal to the cost. Note that this is paid in discarded cards, so cards that provide multiple energy only ever count as one.

Early in the game this was free for most basic Pokémon and increased as evolution level did. This has since changed and now ''only'' evolved Pokémon have 0 retreat cost, and those that do are unusual, though retreat cost still generally increases with evolution.