SS Son Goku, Awakened Onslaught

[Auto] Place 1 of your Z-Energy in its owner's Drop: At the end of your turn, remove this card from the game, then choose up to 1 of your opponent's Battle Cards with an energy cost of 5 or less and place it at the bottom of its owner's deck. [Activate:Main] [Once per Turn] If your Leader is mono-blue and you discard 1 Extra from your hand: Draw 1 card, and this card gains [Critical] for the turn.