Saltzpyre, Zealot

Zealous Persist (Persist until tis creature
enters the battlefield with 0 toughness)
Saltzpyre, Zealot has haste if there are
1 or more -1/-1 counters on it.
Saltzpyre, Zealot has First Strike if there are
2 or more -1/-1 counters on it.
Saltzpyre, Zealot has Double Strike if there are
3 or more -1/-1 counters on it.
Saltzpyre, Zealot has Indestructible if there are
4 or more -1/-1 counters on it.