Krizdún, Bard of the Shadows

{t}: Put a -1/-1 counter on target creature.
{2}, {r}, Draw a card, Krizdun has +X/+X
until end of turn, where X is equal to that cards total mana cost.
"Lulled into an eternal slumber, his beautiful melody was the last thing they ever heard."
—High Priest of Ganjathica