Goblin Sharpshooter

Goblin Sharpshooter doesn't untap during
your untap step.Whenever a creature dies,
untap Goblin Sharpshooter.
{t}: Goblin Sharpshooter deals 1 damage to any target.

YES! it can kill all of your 1/1's in a single
turn. And can continue doing it during your
turn.