税(ぜい)血(けつ)の収(しゅう)穫(かく)者(しゃ)

When this creature enters, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this token: Draw a card.")

, Sacrifice this creature: Target creature gets −X/-X until end of turn, where X is twice the number of Blood tokens you control. Activate only as a sorcery.