If Hidden Blade is played against me and I react with Defy, do I still draw 2 cards?

Ruling: No, you do not draw 2 cards. When a spell is countered, it is removed from the chain without any resolution and none of the countered card's instructions will be carried out.

Sequence:

• Defy resolves
• The countered spell (Hidden Blade) is immediately removed from the chain
• Hidden Blade never resolves, so its draw effect does not happen

Nuances:

• The countered card does not count as a "played" card since it never resolved
• Once removed from the chain, the countered spell cannot be targeted by other effects (it no longer exists)