Sylene is the daughter of Loki and cousin of Thena. Like her father, Sylene has wanted power and conquest since she was old enough to wield her powerful magics but failed many times.
Sylene was created by Tom DeFalco and Ron Lim
Following the destruction of Asgard at the hands of Galactus, Sylene decided to rebuild Asgard on Earth and undo the history of the Avengers in the process. Allying herself with Ulik the rock troll and the petty criminal Warp. She kidnapped Thunderstrike and rebuilt Ultron Extreme to capture the Avengers and use their life energies to turn Earth into the new Asgard. However, she did not expect Warp to betray her and free Thunderstrike, leaving them the only two people to defeat her. Both Warp and Thunderstrike tag teamed Sylene and stole her power device from her allowing Jarvis to free the Avengers and the entire team sans J2 attacked Sylene. J2 was able to smash Sylene's power base allowing Earth to transform back to normal. Mainframe then crashed his satellite into Sylene's base destroying it and ending her threat for the time being. Her current whereabouts are unknown.
Major Story Arcs
Powers and Abilities
Sylene is granted certain mystical abilities to change her appearance, transform matter and wield a numerous amount of different energies.
As a Asgardians, Sylene possess the standard physical attributes of an Asgardian Females 25 tons, superhuman speed far superior to that of the finest human athlete and stamina enabling them to perform at their absolute peak for at least 24 hours before even starting to tire. She also have superhuman reflexes greater than a human's, superhuman durability that allows her to withstand (powerful impact forces, extreme temperatures, high pressures, energy blasts and high caliber bullets without sustaining injury) and agility.
She possess a regenerative healing factor, being capable of healing from injuries such as slashes and puncture wounds in a matter of hours, and mending broken bone within the day. She can't however, re-genarate missing limbs or organs without magical assistance.