Trainers » Energie - Rückgewinnung | Trainers » Energy Retrieval | Trainers » Energy Returner
In Germany we have two different Trainer Cards with the same translation for the name. Both Energy Retrieval and Energy Returner are called "Energie - Rückgewinnung". How would this be handled in a Decklist? Can I have 4 of both?
In Japanese and English those are two different cards with completely different actions. You may have up to 4 of each in your deck, but on the decklist you should list them on separate lines and include the set and card number on each line for clarity.
Source: PUI Rules Team (2011-09-15)
Trainers » Energy Returner
If I have less than 4 energy cards in my discard pile, can I play "Energy Returner"?
Only if you have at least one energy in your discard. If you have less than 4 energy, return all of them to your deck.
Source: Unleashed FAQ (2010-05-13), PUI Rules Team (2010-05-13)