I say its broken for a number of reasons. First this card gives the player going first a huge advantage because you get a mon with four Energy on your first turn, not including your normal attachment. A Flareon-EX with five Energy turn one is huge. Second, it places more importance on opening hands. Ultra Ball finds a Tapu Lele, which finds this card and since you can't attack on your first turn, you get all the advantage while your opponent is left to respond. The card places too much pressure on your opponent's first turn. The third reason is it has unhealthy interaction with cards like M Mewtwo-EX.
The biggest issue here is the advantage the player going first gets since the text ending your turn doesn't matter here and you pretty much get four Energy for free, not including other cards like Max Elixir and your attachment for the turn.