The King in Yellow

Whenever a card is put into an opponent's
graveyard from anywhere other than their hand,
you may pay {1}. If you do, draw a card.
{2}{b}{r}: Each player reveals a card at random
from their hand, then put each card revealed this
way on the bottom of its owner's library.
"My mind will bear for ever the memory of the Pallid
Mask."—R.W.Chambers