Emerald Sword

Emerald Sword enters the battlefield with two
stone counters on it.
Equiped creature gets +3/+2 and has protection
from green and from black.
{t}: Remove a stone counter. If there are no more
stone counters on it, it has "Equip {2}"
For the king for the land for the mountains
For the green valleys where dragons fly...
— Old poem excerpt