In September 2007, she appeared in the six-issue limited series Wonder Girl: Champion[4] written by J. Torres and illustrated by Sanford Greene and Nathan Massengill.

Cassie spent most of her time at her mother's place of work, the Gateway City Museum of Antiquities, where she had a penchant for getting into trouble.

During a fight with a Doomsday clone and another battle with Decay, she created a costume and used magical artifacts (the Sandals of Hermes and the Gauntlet of Atlas[5]) to help Wonder Woman, much to her mother's horror.

Cassie heavily idolized Donna Troy, the original Wonder Girl, and to that effect wore a black wig over her natural blonde hair (it also helped to conceal her identity).

During her time with that group, the dark god Oblivion caused Wonder Woman's Wonder Dome palace to destroy Gateway City.

Donna Troy was seemingly killed by a rogue Superman android, leaving Cassie shaken and causing both teams to disband.

After stopping Weather Wizard in Metropolis, Cassie meets Supernova and refers to him incorrectly as Kon-El, who actually turns out to be Booster Gold in disguise.

Cassie has gained a new friendship with the recently returned Supergirl, Kara Zor-El, who has shared with her in mourning the loss of Superboy and Paradise Island.

In the middle of this conversation with Robin and Raven, Wonder Girl is captured by Deathstroke's villainous Titans East after an attack by Inertia and Match.

Deathstroke selected Match, a Bizarro-type clone of Superboy, to counter Wonder Girl due to his strength and his warped visage as being a psychological edge against her.

However, Raven, Cyborg, and Duela Dent manage to get aid from Nightwing, Donna Troy, Beast Boy, and Flash (Bart Allen).

[volume & issue needed] Wonder Girl recently appeared in a six-issue self-titled mini-series written by J. Torres and with art and covers by Sanford Greene and Nathan Massengill.

However, as she attempts to apprehend a group of mystical beasts left over from the Amazons' attack, she finds herself confronted by her half-brother Hercules, who claims to want to help her become a true champion of the gods and to rebuild Olympus.

Hercules stops the fight by explaining that he has allied with the Furies in hopes of rescuing the gods, or, failing that, starting a new pantheon with them.

After Bloody Mary is murdered by the New Gods killer, Hercules is freed from her spell and immediately saves Wonder Girl from being kidnapped by the Furies.

Conner quickly forgives her, arguing that even if Cassie still loves him, she could not have known of his impending resurrection in the immediate aftermath of the Infinite Crisis, so she has nothing to blame.

The heroes continue in their fruitless stalemate until Beast Boy arrives and takes command of the team, leading to their victory.

In the aftermath of the battle, Beast Boy tells Cassie that she has to stop dwelling on Devil's death or else more innocent people are going to get hurt, something she does not take kindly.

Though Cassie initially says nothing about this, she ultimately becomes angry and tells Beast Boy that no one asked for his help, and that she can lead the team just fine.

Lacking assistance from Static, Miss Martian, Blue Beetle, Bombshell, and Aquagirl (each of whom are presumably defending other cities), the team barely survives the onslaught.

The three heroines are easily defeated and captured by Holocaust, who then informs them that he plans on killing them and weaponizing their powers to sell.

On the plane ride back to San Francisco, Conner remarks that Cassie seems to be ignoring him, and she simply responds by telling him that he is correct.

[48] Cassie later travels to Gotham City alongside several of her fellow Titans after Ra's al Ghul begins targeting people close to Tim Drake.

Despite her pleas for Static to stay, Wonder Girl is ultimately left with a roster consisting of only herself, Superboy, Kid Flash, Raven, and Beast Boy.

She first crossed paths with Red Robin after she was rescued from an organization called N.O.W.H.E.R.E, who were capturing young teenagers who were developing metahuman abilities for their own nefarious purposes.

Red Robin was tracking down N.O.W.H.E.R.E and news coverage of teenagers with abilities and their actions in a lecture by Lex Luthor about aliens on earth.

[59] Discouraged by previously shown arrogance in his children (Ares and Heracles), Zeus also blessed Cassandra's mother with the ability to take away her powers for a short time via a simple touch.

[60] However, while trying to stop the military from detaining her mother, Ares causes her powers to fluctuate when he believes she is wasting them on frivolous matters.

Her powers are now derived from the Silent Armor that she wears, which was forged in the heart of a sun and is apparently related to the demon known as Trigon.

In the fourth season, Phantoms, she takes on a leadership role after the Outsiders' leader Beast Boy falls into depression following Superboy's presumed death.