Originally Posted by Seiko
Itachi does not draw cards if he discarded himself. Shino's Dad should edit that.
Actually, you do. If his cost was to discard the Ninja you would not draw because he is no longer on the field for his effect to resolve. Since it is all part of the effect, he actually gets the effect. It's an effect that sets a condition within the effect. If that condition is met or fulfilled, you draw the 2 cards.
So for example, if the effect was:
Discard 1 Ninja you control:
Draw 2 cards.
And you discarded itself, you would not draw since he is no longer on the field and his effect cannot be resolved.
Since it is:
Discard 1 Ninja you control. In that case, draw 2 cards.
You activate the effect, pay 0, and place the effect on the chain. When resolution occurs, you can discard itself. The effect still resolves, and you draw 2.
Hope this cleared it up.