Hmmm, alot of good discussion, alot of interesting ideas. A few single minded, single target oriented ideas also. Some of which, from my experiance trying everything I could combine and attempt to synergize to MAKE this combo work well, don't work very well as robust, able to handle multiple situations builds.
Life Transfer is a great regen and degen tool, cheap, easy to max out degen and then some with in combination with other skills, but has one very major and glaring downfall for PvP Melee Mancer use... Recharge time. 30 seconds.
Very nice for single target oriented fighting, but does not cut it if the fight lasts longer than 12 seconds and/or a healing breeze is cast on target.
Shadow Strike is another weapon with great possibilities, if you only want to take something to half health. After that you are spending 10 energy for a longer recharge and slow casting Flare.
Sever Artery to Gash combo, considered necessary as bread and butter for sword warriors, works great for 4v4 warriors, but as a Necro primary, you have MUCH better skills to use in that slot. And no, deep wound is NOT necessary to kill anything. Especially as a Blood Melee Mancer, your objective is to cause 10 degen and then start laying into the target with you weapon, sword preferably and cause even more DPS.
Vampiric Touch, energy hog, small return for way too much energy on an already strained pool. Offense or stealth health steals would work much better. Strip Enchantment, as long as you have an enchantment somewhere to work with, you have health. And a good bit of it too.
What are you trying to accomplish with a Blood Melee Mancer? To cause some irritation with mass castings of -3 degen and some random conditions? Or to select a target and cause the absolute MOST damage per second you can?
Deep Wound is a spike skill, best used by Warriors, Rangers, and Elementalists. Damage per second is something a Melee Mancer can become king of if they put their mind to the problem at hand. What combo of skills does the most damage over the shortest amount of time?
Here is a build I've used and had used against me before, not common, hell I've only seen it a couple times other than when I ran it, and one was my brother.
Blood: 12+3+1
Sword: 11
Soul Reaping 4+1
Tactics: 5 (have a req 5 tactics +1 Blood 10% shield)
Sever Artery
Life Transfer
Order of Pain
Flurry
Final Thrust
Res Signet // Strip Enchantment // Life Siphon
Blood Renewel
Vampiric Touch // Strip Enchantment (depends upon what I am seeing)
Orders may be hard to use, but when used correctly they can put your entire team's damage from manageable to over-powering. And in some cases a single player's damage from manageable to over-powering.
Sever and Life Transfer gives max degen, Order of Pain adds more damage to your attacks, Flurry gives you 5, maybe 6 attacks during Order of Pain. Final Thrust, well you should know how to use this

Use Blood Renewel and then Vampiric Touch to regain the lost health, then halfway through Blood Renewel, use the LT/OP/Flurry combo. Blood Should expire right after the combo is done giving you a good sized lump of health.
I much, MUCH prefer an axe/death/curses build. But insofar as twirling a sword goes, that pretty much takes the cake for me skill wise.