If I use Ditto's "Copy Anything" attack to copy one of my opponent's Tag Team GX attacks with a bonus effect for extra energy attached, do you count the extra energy starting at Energy #2, or after you take into account the "necessary Energy to use that attack"? For example, if it copies Pikachu & Zekrom GX's "Tag Bolt GX" attack, does it need 6 {L} attached or just 4 in order to get the bonus effect?

You count based on the required energy that normally has to be attached for the attack. So for Tag Bolt GX, Ditto would need 6 {L} energy attached to get the bonus effect.

Relevant cards

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