FF14 has an ability que in place which is like a 0.5 second que I believe but you can get 5 Blood Weapon ticks in if you time the button presses just right, which is a little over 3/4ths, sometimes a little more, of the GCD being filled if using DRK Spells, so once you cast Unleash and get the confirm, pop Blood Weapon once GCD is 100% instead of just queing Stalwart Soul after weaving in Blood Weapon because it might be more latency based but then again I recommend not playing DRK until it gets fixed to the point where I can recommend playing, and instead suggest playing PLD as a better magic tank alternative, or GNB as a the better DPS tank alternative.