Venus is Earth 3’s version of Poison Ivy and a member of the Legion of Justice, she has the same powers as her Earth-0 counterpart although is a hero.
It is implied that she’s romantically involved with fellow teammate Red Hood (Earth 3’s Harley Quinn) similar to their main canon counterparts, although now a hero couple instead of a villain or anti-hero one.
After the final battle, she is shown to have survived.