I found a semi vanilla PvP server that is inspired by StrengthSMP and it is all about getting stronger from fights.
When you kill players you get a strength boost and if you drop down to minus 10 strength you get eliminated with a ban. There is also a revive beacon system so other players can bring you back with an unban.
It has a custom spawn and a custom nether portal area plus a massive 100k by 100k worldborder so there is tons of room to play. The server started on the first of janurary and the owner says events can happen once more players join.
They also mention the server runs on 24GB of ram and a CPU with 8 cores and 16 threads at 4.60 GHz.
