Volrath the Fallen
Legendary Creature — Phyrexian Shapeshifter, {3}{B}{B}{B}
Oracle Text
{1}{B}, Discard a creature card: Volrath gets +X/+X until end of turn, where X is the discarded card's mana value.
Legendary Creature — Phyrexian Shapeshifter, {3}{B}{B}{B}