Eye of Osiris
From Destinypedia, the Destiny wiki
Eye of Osiris is an exotic emblem only obtainable in the House of Wolves expansion. In order to recieve the Eye, you must go 9 wins without loosing one.
How to Obtain
9 wins with no losses must be obtained on a single score card.
When you and your team (maybe not the entire team) get the 9 wins, you get to go the Lighthouse on Mercury. You will be able to open a big chest and then you will be guarenteed the exotic emblem.