Can the Sett player draw 2 cards after saving a unit with Hidden Blade even though the unit did not die?

Ruling: Yes, the Sett player can draw 2 cards. As long as the target is legal when Hidden Blade starts resolving, the controller will draw regardless of whether the unit actually dies.

Nuances:

• The key timing is that the target must be legal when Hidden Blade begins resolving
• The unit being saved does not prevent the draw effect from occurring