What you need:
hunter with Feign Death and a druid with Cyclone.
- Engage in battle and kill at least one champ.
- Pick another target and get the champ down to as low health as possible without killing it.
- Have all raid members die except for druid and hunter.
- Cyclone the target that was almost dead.
- Immediately after cyclone druid must die, then hunter must FD
- All NPCs will despawn except for the cyclone target
- Hunter then finish off the target once cyclone wares off.
- ....
- Profit