Vladimir from League of Legends was different enough conceptually not to be connected to the Vampire Lord from Demigod, mostly because he uses blood as an offensive medium somehow, but can this really be considered an original character by any means?
http://na.leagueoflegends.com/news/champion-sneak-peek-zyra-rise-thorns
...compare to...
http://www.demigodthegame.com/origins/queenofthorns/
- Identical character design
- Nigh identical color scheme
- Same creative concept
- Seemingly same gameplay mechanics
Just have to wait for the lore to come out. I get the feeling it might be a copy/paste of the Queen of Thorns origin page with mild editing to fit the League of Legends world.
The worst part is that I play LoL myself and enjoy it and want original champions but then get this, a champion ripped straight from one of my favorite games of all time.