Ultimate Whirlwind Spin

[Permanent] This card gains "Shadow Dragon" In all areas. [Activate:Main/Battle] [Limit 1] (You can only activate this skill once per turn across all copies of this card.) If your Leader Card is black : Look at up to 5 cards from the top of your deck, add up to 1 black "Shadow Dragon" Battle Card among them to your hand, then shuffle your deck. You may choose 1 black "Shadow Dragon" card in your hand and discard it. If you do, up to 1 of your Leader Cards gets +1000 power for the turn.