Eldar outcasts are a band of cutthroaths and daredevils that travel the universe in large space craft. These are constructed from the bones of thier enemies, whom they crush utterly and blend in to stone and iron to create large and dormant mammals. Othertimes they can be found watching the stars, singing: heaven's gotta wait, another year, hold on to your vision tonight.
Altough many consider Eldar Outcasts to be the creations om madmen, many have found them to be the best offensive weapon in the galaxy.
The imperium of man have noted these eldar outcasts to be xenos whom should be eradicated from the stars for the greater good of the tau fire caste. The emperor, often called Him, are ever vigilant.
To be conclusive, these are the terms of engagement. Do for them everything.