Does the owner of a unit getting Hidden Bladed still draw 2 if they recall the unit to hand (not using Sett's legend ability)?

Ruling: You do not draw 2 cards if the unit is recalled to hand before Hidden Blade resolves. When Hidden Blade resolves, it looks at the battlefield but cannot find the target anymore, so it is unable to determine who was its controller and therefore you do not draw.

Nuances:

• If you use Sett's legend ability (The Boss) to recall Sett to base while saving him from death, you still draw 2 cards because the unit remains at a battlefield location
• You cannot re-select a new target if the original target is no longer valid