Deathtouch Boast — {1}{B}: Target player searches their library for a card, then shuffles and puts that card on top. (Activate only if this creature attacked this turn and only once each turn.)

As an additional cost to cast this spell, discard X cards. Sickening Dreams deals X damage to each creature and each player.

Reveal the top card of your library and put that card into your hand. You lose life equal to its mana value. You may repeat this process any number of times.

({T}: Add {B}.)

{T}, Sacrifice this artifact: The next time a source of your choice would deal damage to you this turn, prevent half that damage, rounded down.

{T}, Sacrifice this artifact: Add one mana of any color.