Famous Guardians Lore

[u]Osiris: A Report[/u] According to the Concordat, before his resurrection Osiris was a "Golden Age experiment mis-incarnated as a human". He was reputedly a mighty Warlock, likely of the Sunsinger Order, and was present for both the Battle of Six Fronts and the first of the Strikes, implying his leaving, which will hereon be referred to as the Abandonment, was relatively recent (in comparison to other traitors, namely Dredgen Yor and Toland). His import was such that Saint-14 took note and installed his as Vanguard Commander. In this role he grew tired of authorising Strike operations and dealing with the Cryptarchs, who proved (unsurprisingly) cryptic and useless. At this point, Osiris was taken under the wing of an unidentified Warlock. I have assumed this is Ikora, due to textual similarity to Ikora's other messages and that it would imply Osiris was once a member of the Hidden. Ikora, however, found Osiris' questions borderline traitorous as he questioned why Ghosts always select humans with subservient tendencies, heroic natures and weapon skill. Osiris theorised that the Traveller was creating an army as much as it was defending itself. At a critical moment, when the City had seized a moment of relief and a chance to both push the Fallen from the Wall and strike back against the Darkness, Osiris distracted Guardians of all classes in irrelevant pursuits, more interested in understanding the enemy, rather than fighting it. The schism between ideologies eventually grew too wide, and Osiris and his Cult left the City, Osiris having decided that the Speaker, Cryptarchs and Vanguard had no real long term strategy against the Darkness, as they did not seek to understand their foe. It is in this period that Osiris became obsessed with the Vex. He discovered that the Vex, once thought to be a single, monolithic force, were fractured into separate groups across multiple dimensions, all fighting for the save goal but through different means. It is known that Osiris also studied the Hive, uncovering the dangers of Crota and Oryx much as Toland had done before. Eventually, the Cult of Osiris attempted to create a base on Mercury. In his own words, the sun "took my eyes", as Osiris (and possibly the entire Cult) were blinded upon their arrival due to their proximity to Sol. The group fled to a Vex structure, discovering that the technology there dimmed the light to an acceptable level. The Vex also arrived at the facility and, judging by the skeletons at the Lighthouse, exterminated some of the Cult. The Vex and the Cult, for reasons unknown, both abandoned the structure. Osiris himself may have been among the dead, as various Ghosts reported, and a solitary skeleton near a portal in the depths of the building might be that of Osiris. However long they lingered there, Osiris was able to discover a means to move through the Portal system, and may have been preparing such a trip before the Vex attack. He theorised that the Traveller was a "God-incubator". With most of the Cult killed and their arms and armour, presumably built for the aforementioned Portal trip, liberated from the corpses of the dead, Osiris or (if he was indeed killed) planned the Trials of Osiris to both recruit new Cultists and to arm them befittingly. What happened to Osiris is unknown as he may well still live, but he fought for his ultimate aim to find Light in the Heart of Darkness.

One more question, [b]Saint-14[/b]; What do I need to know about him? He fought at Twillight Gap, He's a Titan, what else should I know?

I have a question that I still cannot find the answer to. How many guardians are there?

Alright, the Grimoire talks about corrupted or banished Guardians, Dark Guardians let's say. Who are these Dark Guardians, how many do we know of?