Swallowed by a Whale

When you cast this spell, choose target creature an
opponent controls and discard any number of cards
from your hand. The chosen creature is exiled with
a number of time counters on it equal to the
number of cards discarded with this spell.
At the beginning of your upkeep, remove a time
counter from the exiled creature. Then if there are
no more time counters on it, return it to the
battlefield tapped and under its owner's control.