Short Story of Med'an :
Aegwynn once defeated Sargeras while he led a hunt for dragons. The Dark Titan was not really vanquished and instead laid dormant inside of Aegwynn, waiting until she had a child (all knowing that she wouldn't pass on her power to an heir chosen by the then-corrupt council of Tirisfal, and wouldn't let her power die if she could choose it). He ended up being right, with Aegwynn manipulating Nielas Aran into fathering her child, Medivh. Sargeras then corrupted the embryo and possessed Medivh, who couldn't handle it at such a young age and ended up striking his mother with the power she passed on to him, to then fall into a deep coma for several years. Coming out of his coma, the Kirin Tor attempted, several times over, to make him take an apprentice from their ranks, who happened to be young Khadgar (last name not mentioned, would like specification on that), who was sent for his gift of finding things he shouldn't be able to find, within the limits of possibility. That, however, was after Medivh, still possessed by Sargeras, prodded the orcs into opening a dark portal to Azeroth, which led to the orcish Horde (and, therefore, Garona Halforcen -- a half orc half draenei) to invade (or try to) invade the human kingdoms. Medivh then invited Garona at the same time as Khadgar, and, while Sargeras was looking the other way, had some sexy time with her, and, all in luck, she fell pregnant, all according to Medivh's plan to pass on his power to an uncorrupted heir, while Sargeras was still too stupid to look. (Personally, I think Sargeras shouldn't have been able to afk away from Medivh's brain for so long, but hey, I don't make lore.)
Alright, so that's how he was made, and all that. Now, as to him, personally.
Med'an is the current Guardian of Tirisfal, a founder of the New Council of Tirisfal, and the son of Garona Halforcen and Medivh. His unusual parentage and training has given him the unique ability to interweave shamanic magic with the arcane and divine. This gift, however, has also drawn him into conflict with cultists who believe he is the subject of an ancient prophecy and dark entities who would make his power their own.
Med'an is the main protagonist of the third and fourth volumes of the World of Warcraftcomic, and has yet to appear in World of Warcraft or other related media.
The "three realms" in the prophecy refer to the world which his racial heritage originated from, which is Argus for draenei, Draenor for orc and Azeroth for human.
Med'an was conceived during a tryst between the half-orc half-draenei assassin Garona Halforcen and the Guardian Medivh while she resided in Karazhan as an emissary for the warlock Gul'dan. She gave birth following her assassination of King Llane Wrynn ofStormwind and, fearing that she may again be compelled to kill those closest to her, gave him up to Meryl Winterstorm, a millenia-old undead mage and member of the original Council of Tirisfal.
Meryl raised Med'an as his adopted son in the war-torn region of Duskwood, while Garona secretly watched over him from afar. Taking up residence in Brightwood Grove, Meryl taught Med'an armed combat and, as the youth grew closer to adulthood, helped guide him in his mastery of shamanic and arcane magic.
Hey hey! You made it through! Alright, so as far as him in Heroes goes, he will be an assassin --- I wanted support, but then I thought back on it and thought that mages couldn't be healers, so I reluctantly headed for my second option -- An assassin. Med'an is very particular, as in that he masters The Holy Light (from his Draenei heritage), Shamanism (Orc) and Wizard Magic (From being the son of a clinically insane mage and then being given the most powerful magical artifact known to man, or at least one of them, and then being given the ultimate power of all humans.), and so, he will have one spell of each class, and, very particularly, will have the choice between three different ultimates.
His trait grants him the unique power to interweave the effects of his abilities to some degree. The way his trait is used is as following : Activate trait, then press an ability. Pressing another ability will grant it the "Interweaved" bonus from the spell that was chosen to interweave right after the trait was activated.
An important thing to note is, right now, the numbers may seem overpowered, underpowered, etc. I would like for you all to note that they can and will be fiddled with, so nothing of them is terminal. Now, if my very idea is flawed, or if something just seems too powerful in theory, like the Shamanistic interweave of the Circle of Light, I'd appreciate you guys telling me, as feedback is always appreciated.
Next, I understand he is Quarter Orc, Quarter Draenei and Half Human but why does this make him an Enhancement Shaman, a Discipline Priest and an Arcane Mage? Also, why is he so Special that he gets three Heroic Abilities?
I like the Idea behind Weaver of Magic, however I see him becoming too much like the Invoker of DoTA (which even for someone like me who likes Mechanically difficult Characters is hard to grasp) maybe if you focused down the combinations or re-evaluated what they do could make it a bit better and of course I would like completely new Kit Abilities, but again I do understand where you are coming from with this.
[Side Notes!!!] I can see a really cool Shaman Character being fleshed out with Spiritual Wolves with the Inverweave Effects. Those look good and because I say scrap Kit Abilities for this Concept doesn't mean I don't like them. Like Spiritual Wolves all of the Abilities are different and Unique but that is just too much variety for one Character IMHO.
Design a new, more fitting Kit for Med'an and use these Abilities for other Concepts is my best advice.