Death Star

Death Star enters the battlefield tapped.
Death Star's abilities cannot be activated if it has any time counters on it.
During your upkeep, remove one time counter from Death Star if it has any.
{t}: Add {w}, {b}, and {r} mana to your mana pool.
{2}{w}{b}{r}: Exile target permanent. Put two time counters on Death Star.
"Now you shall witness the power of this fully armed and operational battle station!" - Emperor Palpatine