Shock Therapy

[Nydaeli]

Shock Therapy 
Sorcery
Name a card other than a basic land.  Target player reveals his or her hand.  If that player revealed a card with the chosen name, Shock Therapy deals 4 damage to him or her; otherwise, Shock Therapy deals 2 damage to him or her.

I like burn spells that involve thinking.  I also think that "Name a card" effects have been underused, and I don't see why they couldn't be used in red cards.

Other possibilities include costing it at RB and making them actually discarding the card, or having it deal damage for each copy of the card.

[Matt]

I like it, and it's not actually too good since it can only hit players.

[Anusien]

Does this become more or less interesting as an Instant?

[Darkenslight]

  for 3 damage per copy of the card, or two if it whiffs?