Rose Red Sword

Equipped creature gets +X/+2 where X is the
number of +1/+1 counters on equipped creature.
If X is greater than five, equipped creature gains
first strike.
{p/r}, {t}: Put a +1/+1 counter on equipped
creature.
Equip {p/c} {p/c}
"It is a holy sword, but also a cursed sword."