Ilya, Stewardess of Decay

At the beginning of your upkeep, each player mills
X, where X is the number of rot counters on Ilya.

{1}{b}, {t}: Exile target card from a graveyard. Its
owner loses X life, where X is its mana value. Put
two rot counters on Ilya.

{g}, {t}: Put target card from a graveyard on top of
its owner's library. Its owner gains X life, where X
is its mana value. Put a rot counter on Ilya.