Nihilum, Courier of Ulamog

Suspend 4 - {1}. (Rather than cast this card
from your hand, pay {1} and exile it with four
time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)
When Nihilum, Courier of Ulamog enters
the battlefield, if it was cast from exile, put a colorless permanent from your hand onto
the battlefield.