Fallen Angel with Reacendance (Blood 3, Fire 3) at Blood 6.
Father Illearth (Blood 3, Earth 3) at Blood 7.
Vampier Lord with Curse of Blood (Blood 3, Death 3) at Blood 7.
Bind Heliophagus at Blood 8.
One of the Treelord has Nature 4, Blood 1 (Enchantment 7). It's theoretically possible
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I think that the Lamia Queen (Conjuration 6) has 2 death, 1 nature and 2 random in *sorcery*, i.e., one of the non-elemental magic. So, you should have a better luck drawing a blood slot for her.
Spectral mages (also Conjuration 6) also have two random slots but since they're *wizardary* and you might have elemetal picks, the chance of getting blood will be smaller.
Did I miss any?