Blitz Blade is a very good item for both range and melee heroes, it provide alot of potential using this item such as: good attack damage, attack speed, life steal and movement speed.
+60 attack damage
+30% attack speed
+10% life steal
+5% movement speed
Every 8 seconds, the next normal attack triggers a chain lightning that deals 150(+20% attack damage) physical damage. Each normal attack also carries life steal and reduces cooldown by 1 seconds on hit which is really good for a high dps heroes.