Code Name: Revanche
Real Name: Kwannon
Height: 5'11"
Weight: 155 lbs.
Group Affiliation: None
Prior Affiliations: X-Men, the Hand
First Appearance: X-Men #20
Known Relatives: None
Known Allies: Matsu'o Tsurayaba
Known Enemies: Elizabeth Braddock, Spiral, Mojo

Powers: Revanche has the mutant power of telepathy. This ability allows her to transmit her thoughts to others and read the minds of others. While she resides in Elizabeth's original body, it has never been shown that Revanche can tap into Betsy's mindblast power. Instead, she is able to create a psychic kitana that works on the same principles of Psylocke's psychic knife.

Origin: Kwannon was a Japanese assassin that was romantically involved with a fellow assassin, Matsu'o Tsurayaba. After an encounter on a pier in Hong Kong between the British mutant telepath Betsy Braddock and Kwannon, she was found by Matsu'o Tsurayaba. The encounter between the two women had extreme results. Revanche remembers the ninja Kwannon coming upon the body of Betsy Braddock on a pier. Kwannon reaches out and touches Betsy's body. At one touch, Betsy's fractured mind reaches to Kwannon's, the two minds of Kwannon and Betsy Braddock fuse together. However, Psylocke's mind depicts the exchange occurring under the direction of Mojo and Spiral in Mojoworld's Body Shop.

Matsu'o exploited the fused but fragmented mind of Betsy in the body of Kwannon. Using a sensory depravation tank to create a new reality for Psylocke, Matsu'o changes Psylocke to become a master assassin for the Mandarin. After Elizabeth's transformation, it was believed that her original body was no more. However, months later, a female assassin planned to regain her position by killing the X-Man, Psylocke. This assassin was the woman, Kwannon, who was residing in the original body of Elizabeth Braddock. Cerebro and the Xavier Mansion's security systems did not prevent her from entering the mansion, given that Elizabeth's gene scan was okayed by the security system. Psylocke faced her doppleganger in the Danger Room, assuming it was a holographic simulation created by fellow X-Man, Phoenix. Instead, the doppleganger fought back and revealed herself to be Elizabeth Braddock.

Based on appearances, the new arrival seemed like the original Psylocke. However, surface scans of Revanche and Psylocke's minds were identical and Wolverine noted that Revanche knew ninja moves that were never taught to her by Wolverine (the only X-Man knowledgable in that field during the Australian days). As time passed, it was becoming clearer and clearer that neither of the women were completely what they said they were. Psylocke's memories were distorted to the point where she imagined herself as an Asian child who cut her British twin in half. After ambushing Matsu'o and the Mandarian, they realized that there were other parties involved in the mystery behind the two women.

In a battle with the Brotherhood of Evil Mutants, Revanche revealed that she had contracted the deadly Legacy Virus. Her condition continued to get weaker and weaker, until she decided it was time to die in peace. She tore out her bionic eyes (still in Elizabeth's original body) and left them in a note for Psylocke to find. Travelling to Japan, Revanche attempted to learn the final truth behind the mystery. While she did know that she was not truly Elizabeth Braddock (the ruse was to pay back Psylocke for what happened to her), she did not know how she was changed so inreversably. Matsu'o revealed that the enchantress Spiral and the Hand used magick and science to repair the two minds and bodies. To prevent the Legacy Virus from consuming her, Revanche had Matsu'o stab her. Before death claimed her, Revanche left an incredible amount of psychic residue with Matsu'o to allow him to remove all of Revanche's memories from Psylocke, while restoring all of Betsy's lost memories.