Into the Event Horizon

When cast, set aside a small, easily distinguishable object in a visible area.
At the beginning of your upkeep, if the object is
still present, you may untap all permanents you control during your endstep and take an
extra turn.
When you take an extra turn, if you can perform
an impressive magic trick involving the object,
you may gain control of target permanent
Otherwise, each player draws a card.