If Hidden Blade targets a unit but the opponent uses Hourglass to save it, does Hidden Blade still resolve and does the unit's controller still draw 2 cards?

Ruling: Hidden Blade still fully resolves even if Hourglass replaces the kill effect. The targeted unit's controller still draws 2 cards because Hidden Blade has no conditional "if you do" clause that would prevent the draw from happening.

Nuances:

• Even when game actions used as costs are replaced (like a kill being replaced by Hourglass), those costs are still considered paid
• Hidden Blade would need text like "if you do" or "killed unit's controller" to prevent the draw when the kill is replaced, but it lacks such conditional language