Vraska, Betrayal's Sting (337)

Compleated ( can be paid with or 2 life. If life was paid, this planeswalker enters with two fewer loyalty counters.)
: You draw a card and you lose 1 life. Proliferate.
: Target creature becomes a Treasure artifact with ", Sacrifice this artifact: Add one mana of any color" and loses all other card types and abilities.
: If target player has fewer than nine poison counters, they get a number of poison counters equal to the difference.