Gyara Spearhurler

Gyara Spearhurler enters the battlefield with two -1/-1 counters on it.
{r}, {t}, Remove a -1/-1 counter from a creature: Gyara Spearhurler deals 2 damage to target creature.
{g}, {t}: Put a -1/-1 counter on target creature.
"I'd be renowned for my deadly accuracy, if it weren't for my deadly accuracy."