Gaze of Armagedon

Destroy target creature, take an extra turn after this one, you may only cast era altering spells during that extra turn.
At the beginning of target opponents next upkeep he must chose to either sacrifice two permanents, lose 5 life or discard three cards and you draw three cards for every card named Gaze of Armagedon in your graveyard.
All it takes is a look into the eyes of an Armagedonian... then your either dead or worse