But the higher the difficulty, the better the chances are of one dropping. The mark is an uncommon drop, so players may not receive one on the first kill. In order to tame Blood Destrier, the player must obtain a Destrier Mark from Keadin the Stable Master. There will still be two Blood Destrier's, but now, since Black Wind requires a completely different mark to obtain, unless you have one, killing him off is best for now. On Heroic difficulty is when Black Wind also appears in the middle of the room beside the stable master Keadin. Unless both of them are going to be tamed, it's a good idea to get rid of one, to safely tame the other without it potentially running into the other. On any Elite difficulty there are always two, one of either side of the room. On Story it's pretty simple, as there is only one that spawns, so just be careful about how much HP you take off it before attempting to tame. Since there is a difference on how many and what all spawns in the Dour Stables area where this mount resides, there are different ways of going about taming one without potentially failing and having to obtain another mark. To break their hold over it, a special mark is needed from Keadin, the stable master.” ― From the Carleon Manor Investigation Still loyal to its fallen master, this horse is now a grim steed for the vampires. The Khabimists left no soul untouched by their ruinous magic, no even the animals. “ This tragic creature was once the pride of Count Carleon, one of a stable of fine horses.

The player needs to possess a Destrier Mark in order to tame one. One on Story, Two on Elite, and Two on Heroic, but you'll also find Black Wind. Blood Destrier is a tamable Elite enemy that can be found within the Carleon Estate instance on all difficulties.

Riders of icarus bestiary issuews