Other known variants
x2
-30Delta Control
Once during your turn (before your attack), you may look at the top 4 cards of your deck, choose 1 of them, and put it into your hand. Put the 3 other cards on the bottom of your deck in any order. This power can't be used if Metagross is affected by a Special Condition.
Crush and BurnYou may discard as many Energy cards as you like attached to your Pokémon in play. If you do, this attack does 30 damage plus 20 more damage for each Energy card you discarded.
This Pokémon is both Lightning Metal type.
Electrode-EX's "Crush and Burn" attack does extra damage based on the number of Energy cards discarded, not the amount of Energy provided. Official Wording: You may discard as many Energy cards as you like attached to your Pokémon in play. If you do, this attack does 30 damage plus 20 more damage for each Energy card you discarded.