I see so many MMs run Bloodthirst, and honestly it annoys the hell out of me, and here is why: it is simply worse in every single way than Mark of Evasion.
And to support my claim, I have math! (gasp) I’ll do two sets of calculations, one with high power, to give Bloodthirst its best case for the damage side of things, and one with high healing power, to show the healing side of things.
Assumptions
All of these will be assuming a standard minion build of 4/0/6/4/0 using a full minion build of Blood Fiend, Bone Minions, Bone Fiend, Shadow Fiend, and Flesh Golem, because this is the “optimal” setup for proccing Vampiric Master, which then has a total proc speed of 3.167 procs per second. Also we will assume single target situations, since minions are only going to be hitting a single target with Vampiric Master, we will assume all things are proccing as best they can; minions never die and hit with perfect efficiency, Mark of Evasion is used exactly every 10 seconds. And finally we will assume that it is a heavy armor target we are hitting, since that is what the game uses for its tooltips (this only affects Mark of Evasion’s direct damage, all else is armor ignoring), and that any durations that go into a fraction of a second never get the “lucky” tick (so a 6.5s bleed will be counted as 6, even though it will often tick 7 times).
High Power – Soldier Amulet/Fighter Runes – 2409 Power 355 Healing Power 20% Condition Duration 30% Boon Duration
Reason this was used is for max power, which gives Bloodthirst the highest damage possible.
Mark of Evasion
192 Damage on cast = 19.2 DPS
2 Stacks 9s Bleeds = 765 damage = 76.5 DPS
6s Regeneration = 1047 healing = 104.7 HPS
Total = 95.7 DPS and 104.7 HPS
Bloodthirst
Vampiric = 35 damage per hit and 33 healing per hit, 43/40 with BT
Vampiric Master = 83 damage per hit and 48 healing per hit, 99/58 with BT
BT = 50.67 DPS and 31.67 HPS from VM
MoE gives 47 DPS and 73 HPS higher than BT’s addition to VM, which means that for them to be equal in DPS you have to proc Vampiric 5.88 times per second, and to equal HPS you have to proc 10.43 times per second.
High Healing Power – Cleric Amulet/Flock Runes – 1945 Power 1420 Healing Power 20% Condition Duration 30% Boon Duration
Did this for highest healing power without getting any boon/regeneration duration which would have boosted MoE.
Mark of Evasion
155 Damage on cast = 15.5 DPS
2 Stacks 9s Bleeds = 765 damage = 76.5 DPS
6s Regeneration = 1845 healing = 184.5 HPS
Total = 92 DPS and 184.5 HPS
Bloodthirst
Vampiric = 34 damage per hit and 38 healing per hit, 42/47 with BT
Vampiric Master = 74 damage per hit and 67 healing per hit, 89/80 with BT
BT = 47.51 DPS and 41.17 HPS from VM
MoE gives 44.49 DPS and 143.33 HPS higher than BT’s addition to VM, which means that for them to be equal in DPS you have to proc Vampiric 5.56 times per second, and to equal HPS you have to proc 4.57 times per second.
Conclusion
Even in situations doing everything we can to maximize BT’s strengths and minimize MoE’s, we still come up with BT being about 2-3 procs per second of Vampiric short of equaling MoE. If we assume builds that would actually work in practice – no Blood Fiend, Flesh Wurm subbed in, minions dying and not attacking perfectly on CD – BT falls even further behind, not including the fact that MoE can both heal and damage multiple targets. Just by math alone, there is never a reason you should use BT in a minion build, period.
Thanks for reading, let me know if my math was correct, I’m riding a sugar/caffeine high so there might have been some mix ups (I once accidentally took numbers for VM while I had might active >.<). All numbers were taken from actual in-game practice, not tooltips, which are still (holy crap ANet) bugged in game, albeit only slightly so. And also, discussion is always welcome.