Blood Death Knight
San'layn
With the Single-Button Assistant and its cooldowns, Blood Death Knight (San'layn) deals 70% of perfect manual play in M+ dungeons (rank 11 of 12) and 73% of perfect manual play on a raid boss (rank 8 of 11).
At a glance
4-piece set · SimulationCraft's talents · share of manual DPS kept
| Fight | Manual DPS | SBA + cooldown | SBA alone | Assisted Highlight | Rank (SBA + cooldown) |
|---|---|---|---|---|---|
| M+ dungeon | 176,683 | 70.2%−29.83% | 61.9%−38.07% | 78.5%−21.50% | 11 of 12 |
| Raid boss | 141,440 | 72.7%−27.33% | 65.5%−34.51% | 86.1%−13.92% | 8 of 11 |
What the assistant costs
M+ dungeon · 4-piece set · SimulationCraft's talents · data as of 2026-10-23 12:52 UTC
- Manual176.7Kreference
- SBA + cooldown124.0K70% of manual
- SBA alone109.4K62% of manual
- Assisted Highlight138.7K78% of manual
The assistant uses Blood Boil 73% less.Blood Boil: 42.4 casts in manual play (6.9% of its damage), 11.5 with SBA + cooldown. This is a real loss of the assistant: the figure stands.Cooldowns and defensives
Cooldowns in SBA + cooldown
The button alone never presses these. In SBA + cooldown you press them on your own keys, with your potion and on-use trinket, and the simulator presses them on time.
Best talents for the button
Our standard build is already the best we found for one-button play on a raid boss.
Best of 173 builds tested with the button on the raid boss (2026-10-22): our standard build, the 3 most played builds on Warcraft Logs for this hero talent, then every single talent swap from the best of them. Defensive talents are locked: the search never trades survival for damage.
Searched on the raid boss only: SimulationCraft does not support tanks in its dungeon fight, so AoE talents for Mythic+ are not tested.
CoPAAAAAAAAAAAAAAAAAAAAAAwYWmZmxMmZmhZZmZmmZxMjxMAAAAAmZmZGmZGzMjZAgZmZGAAADMwMW0YZDklBsBYGzAAAmZwgBIn game, open the talent window, choose Import and paste it. SimulationCraft's standard build. Every figure on this page uses it.
Where the damage comes from
M+ dungeon · 4-piece set · SimulationCraft's talents · data as of 2026-10-23 12:52 UTC
Damage per second and casts per ability, averaged over the simulated fights. Pets and summons show their own name in brackets.
| Ability | Manual | SBA + cooldown | SBA + cooldown vs manual |
|---|---|---|---|
 Death Strike | 39.6K27.6% · 99.4 casts | 27.8K26.5% · 81.6 casts | −11.8K |
| Blood Boil (Boiling Point) | 12.2K8.5% · 42.4 casts | 2,7002.6% · 11.5 casts | −9,489 |
 Vampiric Strike | 7,5025.2% · 58.8 casts | 10.1K9.6% · 63 casts | +2,582 |
 Heart Strike | 8,7466.1% · 137.6 casts | 7,3817.0% · 123.4 casts | −1,365 |
 Perfected Guillotine | 8,5816.0% · 30 casts | 8,3718.0% · 29.2 casts | −210 |
 The Blood is Life | 7,3975.2% · 4.4 casts | 7,6737.3% · 4.4 casts | +276 |
 Sanguinary Burst | 5,8774.1% · 4.5 casts | 2,1392.0% · 4.5 casts | −3,738 |
 Infliction of Sorrow | 5,1073.6% · 99.2 casts | 4,1594.0% · 104.4 casts | −948 |
 Corrupted Blood | 4,6873.3% · 13.2 casts | 5,0544.8% · 13.3 casts | +367 |
| Blood Boil (Dance Of Midnight) | 4,9533.5% · 55.4 casts | 9830.9% · 9.9 casts | −3,970 |
| Death Strike (Dance Of Midnight) | 3,9842.8% · 50.5 casts | 2,8302.7% · 41.1 casts | −1,154 |
 Bloody Demise (AoE) | 3,6662.6% · 8.1 casts | 6890.7% · 5.5 casts | −2,977 |
 Death and Decay (Damage) | 2,9532.1% | 3,6293.5% | +676 |
| Death Strike (Everlasting Bond) | 3,1912.2% · 24.5 casts | 1,3951.3% · 9.6 casts | −1,796 |
 Blood Mist | 2,7311.9% · 40.1 casts | 2,8932.8% · 40.1 casts | +162 |
 Prismatic Focusing Iris | 2,3861.7% · 30.1 casts | 2,3602.2% · 29.8 casts | −26 |
| Bloody Demise | 2,0051.4% · 8.1 casts | 1,1971.1% · 5.5 casts | −808 |
| Heart Strike (Dance Of Midnight) | 1,8861.3% · 47.9 casts | 1,4041.3% · 33.8 casts | −482 |
 Venomfang Burst | 1,8741.3% · 86.8 casts | 1,8491.8% · 85.2 casts | −25 |
| Blood Boil (Everlasting Bond) | 1,7911.2% · 9.8 casts | 5170.5% · 3.2 casts | −1,274 |
| Blood Boil | 1,7901.2% · 9.8 casts | 5170.5% · 3.2 casts | −1,273 |
 Devour Morsel | 1,6431.1% · 50 casts | 1,6241.5% · 49.4 casts | −19 |
| Venomfang | 1,4321.0% · 92.5 casts | 1,4001.3% · 90.6 casts | −32 |
 Blood Plague (Dance Of Midnight) | 1,3200.9% · 173.9 casts | 4760.5% · 32.6 casts | −844 |
 Rune of Unleashed Fire | 9750.7% · 54.5 casts | 9760.9% · 54.5 casts | +1 |
| Vampiric Strike (Everlasting Bond) | 7430.5% · 27.7 casts | 8850.8% · 31.4 casts | +142 |
| Vampiric Strike (Dance Of Midnight) | 7190.5% · 31.4 casts | 8820.8% · 37.1 casts | +163 |
 Marrowrend | 4670.3% · 9 casts | 6890.7% · 14.5 casts | +222 |
| Blood Plague | 5590.4% · 41.1 casts | 2380.2% · 11 casts | −321 |
| Blood Plague (Everlasting Bond) | 5590.4% · 41.1 casts | 2380.2% · 11 casts | −321 |
| Auto Attack (Main Hand) (Bloodworm) | 5170.4% · 494.7 casts | 5030.5% · 491.5 casts | −14 |
| Auto Attack (Main Hand) | 4100.3% · 144.6 casts | 3960.4% · 142.1 casts | −14 |
| Auto Attack (Main Hand) (Dance Of Midnight) | 2780.2% · 68.1 casts | 2660.3% · 64.6 casts | −12 |
 Rune of Lingering | 2730.2% · 54.5 casts | 2690.3% · 54.5 casts | −4 |
| Bloody Reflection | 1860.1% · 5.3 casts | 1820.2% · 5 casts | −4 |
| Auto Attack (Main Hand) (Everlasting Bond) | 1380.1% · 25.9 casts | 1350.1% · 25.2 casts | −3 |
| Marrowrend (Dance Of Midnight) | 970.1% · 5 casts | 1020.1% · 6.4 casts | +5 |
 Death's Caress | 1000.1% · 7.2 casts | – | −100 |
 Claw | 610.0% · 17.7 casts | 610.1% · 17.4 casts | +0 |
| Marrowrend (Everlasting Bond) | – | 250.0% · 1.4 casts | +25 |
| Death's Caress (Dance Of Midnight) | 190.0% · 3.7 casts | – | −19 |
| Total | 143.4K | 104.9K | −38.4K |
A dash means the ability was never used in that mode. Damage is attributed the way SimulationCraft reports it, so a pet's damage appears under the pet.
Questions about Blood Death Knight (San'layn)
How much DPS does Blood Death Knight (San'layn) lose with the Single-Button Assistant?
With the Single-Button Assistant and its cooldowns, Blood Death Knight (San'layn) deals 70% of perfect manual play in M+ dungeons (rank 11 of 12) and 73% of perfect manual play on a raid boss (rank 8 of 11).
Related builds
Other hero talents of Blood Death Knight
DPS lost with SBA + cooldown, 4-piece set, SimulationCraft's talents (a top player's build for the hero talents SimulationCraft has no profile for). All specs · Ranking
How it's measured, and its limits
- SBA + cooldown is a best case: the simulator never misplays. It is always better to sim your own character.
- Manual play is SimulationCraft's own rotation executed perfectly, so it is an upper bound for what a person can do, not a typical player.
- Assisted Highlight assumes every suggestion is seen and pressed at once, which is generous for a player reading the highlight.
- The M+ dungeon is SimulationCraft's own DungeonSlice fight style, its approximation of Mythic+ pulls, not a specific dungeon route. Nothing hits the tank there, so SimulationCraft does not support it for tanks.
- The raid boss is SimulationCraft's Patchwerk fight with a boss that hits the tank. Only damage is compared: survival is not measured.
Full method, reliability rule and patches: Sources · Simulated with SimulationCraft 1210-01 (WoW 12.1.5.70575) 710c240 +16 patches, 10,000 iterations per figure.