[Permanent] Having 0 cards in your deck does not cause you to lose the game.
[Activate:Main] Once per turn Look at up to 7 cards from the top of your deck, send up to 1 black card to its owner's Warp, then shuffle your deck.
[Awaken] When your life is at 4 or less, or you have 2 or more energy and a black Unison with a specified cost of 2 in play : Draw 1 card, switch up to 1 of your energy to Active Mode, and add cards from your life to your hand until you have 6 life left.

SS Rose Goku Black, Future of despair
[Permanent] Having 0 cards in your deck does not cause you to lose the game.
[Auto] When this card attacks, send up to 2 cards from the top of your deck to their owner's Warp, then choose up to 1 of your opponent's Battle Cards and send it to its owner's Warp.
[Activate:Battle] Remove 1 black Unison in your Warp from the game: Choose up to 1 of your cards and it gets +5000 power for the battle.