Evolution/TCG/Ability to Evolve

A Pokémon card that is in the player's hand must say specifically that it evolves from a Pokémon card that is in play on the player's side. For example, states on the card "Evolves from Dark Wartortle". This means that any card named Dark Wartortle may be evolved into Dark Blastoise. However, a card simply named Wartortle cannot. Likewise, Pokémon such as cannot be evolved into a Pokémon that says on it "Evolves from Team Magma's Rhyhorn".

However, Pokémon cards from different sets may evolve into one another. For example, can evolve from either  of the TCG Team Rocket set or  of the TCG EX Team Rocket Returns set. So long as the card names match precisely both to (here Dark Crobat) and from (here Dark Golbat), the evolution is legal. This rule, of course, can be circumvented by certain means, such as TCG Pokémon Powers and TCG Trainer cards, however, this is not common.