If I have less than 7 cards remaining in my deck, can I use Electrode's "Energymite" Poke-POWER or not?
Yes, you can use Energymite even if there are zero cards left in your deck.
Energymite



x2
-20Energymite
Once during your turn (before your attack), you may use this power. If you do, Electrode is Knocked Out. Look at the top 7 cards of your deck. Choose as many Energy cards as you like and attach them to your Pokémon in any way you like. Discard the other cards. This power can't be used if Electrode is affected by a Special Condition.

GigashockDoes 10 damage to 2 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
If I have less than 7 cards remaining in my deck, can I use Electrode's "Energymite" Poke-POWER or not?
Yes, you can use Energymite even if there are zero cards left in your deck.