Bloodvial Purveyor
From Innistrad: Crimson Vow set
Bloodvial Purveyor
Creature — Vampire
5/6
Flying, trample
Whenever an opponent casts a spell, that player creates a Blood token. (It's an artifact with "
,
, Discard a card, Sacrifice this token: Draw a card.")
Whenever this creature attacks, it gets +1/+0 until end of turn for each Blood token defending player controls.