At the beginning of your end step, if you gained life this turn, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") Sacrifice two Blood tokens: Transform Restless Bloodseeker. Activate only as a sorcery.

At the beginning of your end step, if you gained life this turn, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") {4}{B}: Each opponent loses 2 life and you gain 2 life.