Just sn idle thought; can vampires drink their fey beast companions?
Great to see this, Mommy! I haven't played in almost a year and, with the dearth of ideas being bandied about on various 'boards these days, I've even stopped checking these more than once every several weeks. It's nice to have something to draw my attention once again!
Melee Basic: well, there's a feat for it (Melee Training: Dexterity). It costs you half your Dex mod in damage, but you should be able to make that up if you're any good at optimization.
MC feats Arcane Vampire, Divine Vampire, etc. If you're going to MC anyway, these give you another way to gain a HS during combat. The bad news is each one only works with powers specifically of their power source, so you'll need to pick up an attack power from that power source.
Implements. Ki Focus solves a lot of problems for you if you can figure out a way to get KF proficiency without screwing up the rest of your build.
Durable feat should be called out as a trap option because it makes Blood is Life harder to use. Similarly, the usual HS-boosting feats (Toughness, Swift Recovery, etc.) are downgraded.
Because of the Vampire HS-during-short-rest mojo, look for Magic Items into which you can dump spare HS that you would otherwise lose.
Some slightly more considered thoughts.
Blood Drinker: it specifically says 'extra damage', but lacks the weapon/implement keyword. Something that might be worth calling out for damage optimization.
Feral Assault: I think this is actually red. Terrible power. I can't imagine any plausible situation in which I'd *want* to use this.
Unfettered Hunger: I think this should be black as long as you use it carefully; i.e. when you're in mop-up phase (and don't need/want to spend HS) or desperate (willing to risk not spending HS because you need the extra damage and mobility). Interestingly, this gives untyped bonuses that don't specify they are only for vampire powers, so it'll work with any attacks you have from any source. Shift your speed as a move action is really good, you usually don't get this for an entire encounter *with* bonus attack/damage also. All things considered I think the strong bonuses with the risk/reward part make it black at worst.
Hungry Swarm: why is this only dark blue when Swarm of Shadows was light blue? Hungry does better damage and has a better rider (blinded).

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.