PULL THEM CLOSER: Give Wonder Girl a ranged combat action as if she had a range value of 6. When she does and hits, in addition to the normal effects, place the opposing character adjacent to Wonder Girl and she may make a close combat attack as a free action targeting that opposing character.

Does the first half of this ability do damage if you hit or only the second close attack.

Yes. She's making a ranged action as if she had a range of six meaning she's still attacking like normal. "In addition to normal effects" refers to her dealing damage on top of the extra effects.

What Zombie said. She’s awesome, and even better with the damage depletion modifier gone.