If a unit is removed from the battlefield in response to Hidden Blade targeting it, does Hidden Blade still resolve and does its controller draw 2 cards?

Ruling: When Hidden Blade resolves, it checks if the target is still legal (still at a battlefield). If the unit has been removed from the battlefield, Hidden Blade does not kill the unit and its controller does not draw 2 cards.

Nuances:

• The draw 2 effect is not dependent on the unit dying, but it is dependent on the target being legal on resolution
• If the unit is saved by a replacement effect but remains at the battlefield, you would still draw 2 because the unit is still at a battlefield