Samurai!?

[Exstal]

You could do a lot of unique stuff with samurai but making it a tank will probably end up being what just another mitigation tank.

For the record, all tanks are mitigation tanks.

Also, SMN/SCH works because it's not a drastic difference in roles. You can turn any of the tank classes into DPS classes by just removing the emnity modifier. You can turn CNJ into a DPS role but it has quite a bit of healer skills (probably a hybrid). The only difficult thing is making any melee class into a healer because, as WoW has shown, melee healers are garbage.

There was never a "melee" healer in wow unless you count monk somehow and they are awesome.

Turns out, it was Warhammer.