Hayley, Undead Master

Vigilance, Lifelink
You may choose not to untap any number of
your creatures during your untap step, if you
don't untap Hayley, Undead Master, you may create a number of 2/2 black zombie creature tokens tapped equal to the number of tapped creatures you controlled during the last end step.
{1},{t}: lose 3 life, draw a card.