Banshee's Blade
{2}
Artifact -- Equipment
Equipped creature gets +1/+1 for each charge counter on ~this~.
Whenever equipped creature deals combat damage, put a charge counter on ~this~.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery. ~this~ enters unattached and stays on the battlefield if the creature leaves.)
Umezawa's Jitte
{2}
Legendary Artifact -- Equipment
Whenever equipped creature deals combat damage, put two charge counters on ~this~.
Remove a charge counter from ~this~: Choose one --
* Equipped creature gets +2/+2 until end of turn.
* Target creature gets -1/-1 until end of turn.
* You gain 2 life.
Equip {2}