
Other known variants
Choose 1 of your Basic Pokémon in play. If you have a Stage 1 or Stage 2 card that evolves from that Pokémon in your hand, put that card on the Basic Pokémon. (This counts as evolving that Pokémon.)
Choose 1 of your Basic Pokémon in play. If you have a Stage 2 card in your hand that evolves from that Pokémon, put that card onto the Basic Pokémon to evolve it, skipping the Stage 1. You can't use this card during your first turn or on a Basic Pokémon that was put into play this turn.