Blood - In general.

[Divine Soldier]

It should be noted that blood vapor's bleed length is too short for it to be possible to hit the target with another ability before it ends unless you're using the caster q ability to reduce GCD, or there's a pre-cast AoE ability active already. Scarlet Darts bleed is for 3 ticks, the first tick occuring on-hit - it is possible to take advantage of this bleed's +10% damage, but difficult.

Hemorrhage's bleed is much easier to take advantage of, however, and lasts for quite some time.