Hedron Blade
From Battle for Zendikar set
Hedron Blade
Artifact — Equipment
Equipped creature gets +1/+1.
Whenever equipped creature becomes blocked by one or more colorless creatures, it gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)
Equip ( : Attach to target creature you control. Equip only as a sorcery.)
