Orcini was famous. Legends arose like a fanfare through the galaxy that he need only breathe upon opponents to kill them.
However, he did not glory in his work. To cleanse his conscience, he gave whatever fee he received to charity. He almost always listened to Bostock's infallible instincts. The only time he didn't, he got an artificial leg. It was a faulty hydraulic leg, however, and was inclined to jam when he sat. Though he was temporarily excommunicated from the Order, he still tried to live by its rules.
Orcini and Bostock were hired by Kara, a woman of great power over Tranquil Repose on the planet Necros, to assassinate Davros, who was using the alias of the Great Healer. Orcini viewed the death of Davros as a great and honourable kill as in the old days when the Order fought against evil. Kara gave him a transmitter (really a bomb) to activate when he was inside Davros' lair. Orcini and Bostock attacked Davros and believed they had destroyed him, only to find it was a fake. The real Davros appeared and Daleks attacked and destroyed Orcini's leg.
When a hostile Dalek faction arrived to take Davros, Orcini decided to detonate the bomb and destroy Davros' Daleks and, he hoped, Davros himself. He gave his medal to the Sixth Doctor to return to the Order. When he left, Orcini, holding Bostock's dead body, activated the bomb to destroy Davros' new Daleks. (TV: Revelation of the Daleks)