Solly has added a new feature to the Ender Blade, the first of a few threatened updates. If you tame an Ender Blade by feeding it 10,000 souls (killing 10,000 mobs), then you can control the direction in which it teleports you; i.e. presumably not into lava.
The patch is live on the server now.
If you have an Ender Blade currently, ask a staff member (me or Solly) to replace it with the new, tameable one for you.