If Hidden Blade is used to kill a buffed unit before Blitzcrank can grab it, and Sett's legend effect saves the unit, does the unit still count as a legal target for Blitzcrank?

Ruling: The unit remains a valid target for Blitzcrank. You will save the unit and draw 2 cards from Hidden Blade, but the unit still gets pulled to fight Blitzcrank.

Sequence:

• Hidden Blade kills the buffed unit
• Unit returns to base (saved by Sett's effect)
• Draw 2 cards from Hidden Blade
• Unit still gets pulled by Blitzcrank to fight it
• Unit fights Blitzcrank without its buff

Nuances:

• Blitzcrank has no location restriction on where the enemy target has to be, so it can pull from base
• If Blitzcrank's text specified "on a battlefield" as a targeting requirement, then recalling the unit would cause the effect to whiff