Temporal Scepter

When Temporal Scepter enters the battlefield,
scry 2.
{t}: Sacrifice Temporal Scepter, Tap X untapped Wizards you control: Exile the top X cards of
your library. You may choose a Wizard creature
card from among them, you may cast it without
paying its mana cost. If you do, you take an extra
turn after this one.
Activate this ability only if you control five
or more wizards.