[@Lucius Cypher] [url=http://giphygifs.s3.amazonaws.com/media/KOVlHmbBA09XO/giphy.gif]Hello there.[/url]

Let me start by saying that UA is not allowed. 

Hmm... well, while I'm not opposed to the idea of a winged tiefling, there is the standard ol' thing of 'unlimited fly speed at early levels' [s]especially since there may be a few characters who want to fly themselves[/s]. However, the winged tiefling is a valid option in most cases (and I'd love to see what comes of the aasimar-tiefling interaction. You are, after all, opposites. And I am a sucker for those dynamics). Maybe replace the 5th level darkness with the fly spell? Let's talk about it. I might just decide not to make changes anyway.

Hexblade is allowed - but it's got to stay relatively within the canon. We're playing in the Forgotten Realms, so your patron will be a Shadowfell entity. What their pact is with you? We'll talk. For gear, I guess there's no harm in letting you start with an axe - this will cost you the default light crossbow. Presuming you take Pact of the Blade, you'd get it at third level free of charge anyway.

I do allow monster races, and yes, the orc will have the intelligence penalty. If the spell specifies that a melee weapon attack must be made against the target, then yes, reach will apply for the purposes of determining the first target - you could not cast flame blade on someone ten feet away from your original target.