Ore Accel Axe

Equipped creature is a Hunter in addition to its
other creature types.
Equipped creature gets +3/+2, Reach,
"Whenever this creature attacks or blocks put a
+1/+1 counter on it" and "{5}: Deal x damage to
any target where x is the amount of +1/+1
counters on this creature, then remove half of the
+1/+1 counter on this creature rounded up"
Equip{3}