Boom Hammer — Weapons, Bloodborne. Explore the sourced guide, practical details and related entries. Free access.
Stats and requirements
Attribute
Value
Strength required
14
Skill required
8
Durability
100
Temporary buffs
No
Base rally
45 ( no upgrade )
Build affinities
Attribute
Value
Attributes recommended by the wiki
Strength, Strength/Arcane hybrid
Elemental conversion
No
Base damage · weapon +0
Damage type
Value
Physical
90
Blood
-
Arcane
-
Fire
60
Bolt
-
Published base attack power, before attribute bonuses, gems and the target’s defence. Wiki damage types: (Blunt/Fire).
Purchase · prices and conditions
Merchant
Daytime
Evening
Night
Blood Moon
NG+
Sell
Condition
Bath Messengers [ Hunter's Dream ]
-
-
28000
28000
28000
14000
Boom Hammer
Chalice Bath Messengers [ Chalice Dungeons Common ]
-
-
28000
28000
28000
-
Boom Hammer
Patches, the Spider [ Chalice Dungeons Rare ]
-
-
28000
28000
28000
-
Boom Hammer
Upgrades · damage and rally
Upgrade
Regain
Physical
Fire
+0
45
90
60
+1
47
99
66
+2
49
108
72
+3
51
117
78
+4
53
126
84
+5
55
135
90
+6
57
144
96
+7
59
153
102
+8
61
162
108
+9
63
171
114
+10
65
180
120
Rally: base recoverable HP; the multiplier for the specific attack is then applied.
Upgrades · attribute scaling
Upgrade
Strength
Skill
Bloodtinge
Arcane
+0
C
E
-
D
+1
C
E
-
D
+2
B
E
-
D
+3
B
E
-
D
+4
B
E
-
D
+5
B
E
-
D
+6
B
E
-
D
+7
B
E
-
C
+8
B
E
-
C
+9
A
E
-
C
+10
A
E
-
C
Upgrades · materials and costs
Upgrade
Slots
Shards
Twin shards
Chunks
Rocks
Echoes
+0
0 / 3
-
-
-
-
-
+1
1 / 3
3
-
-
-
260
+2
1 / 3
5
-
-
-
320
+3
2 / 3
8
-
-
-
380
+4
2 / 3
-
3
-
-
440
+5
2 / 3
-
5
-
-
500
+6
3 / 3
-
8
-
-
560
+7
3 / 3
-
-
3
-
620
+8
3 / 3
-
-
5
-
680
+9
3 / 3
-
-
8
-
740
+10
3 / 3
-
-
-
1
800
Each row shows the cost of that upgrade level, not the cumulative total.
Attribute scaling · exact coefficients
Upgrade
Strength
Skill
Bloodtinge
Arcane
+0
0.60
0.15
0.00
0.41
+1
0.63
0.16
0.00
0.43
+2
0.66
0.17
0.00
0.45
+3
0.69
0.18
0.00
0.47
+4
0.72
0.19
0.00
0.50
+5
0.75
0.20
0.00
0.52
+6
0.78
0.21
0.00
0.54
+7
0.81
0.22
0.00
0.56
+8
0.84
0.23
0.00
0.58
+9
0.87
0.24
0.00
0.61
+10
0.90
0.25
0.00
0.63
A coefficient does not directly give final damage. The bonus also depends on the attribute level and base damage.
Attacks · normal form
Attack
DMG X
Fire X
Type
Endurance
Rally ×
Impact
Condition / detail
R1
1.00
0
Blunt
25
1.00
Normal
sweeping arc is good against crowds
→ R1 (2e)
1.02
0
Blunt
25
1.02
Normal
sweeping arc is good against crowds
→ → R1 (3e)
1.04
0
Blunt
25
1.04
Normal
sweeping arc is good against crowds
R1 (backstep)
0.90
0
Blunt
20 (+10)
0.90
Normal
R1 (roll)
0.90
0
Blunt
20 (+10)
0.90
Normal
R1 (forward quickstep)
0.90
0
Blunt
20 (+10)
0.90
Normal
R1 (side quickstep)
0.90
0
Blunt
20 (+10)
0.90
Normal
R1 (running)
1.10
0
Blunt
35 (+X)
1.10
Normal
R2
1.35
0
Blunt
45
1.35
Heavy
sweeping arc is good against crowds
R2 (charged)
1.90
0
Blunt
70
1.90
Massive
continuously hold R2 to execute
R2 (backstep)
1.20
0
Blunt
40 (+10)
1.20
Heavy
R2 (running)
1.45
0
Blunt
55 (+X)
1.45
Heavy
R2 (forward jump)
1.50
0
Blunt
50
1.50
Heavy
tap forward on the stick just as you press R2 to execute
Transform Attack
0.80
0.80
Blunt / Fire
25 (+X)
0.40
Normal
press L1 while performing another action to execute; forced Guard Break
Plunge Attack
1.50
0
Blunt
50
1.50
Massive
press R1 or R2 while falling to execute
Plunge Attack (2nd hit)
0.90
0
Blunt
-
0.00
Normal
Plunge (AoE)
Damage × and rally × are multipliers specific to each attack. The listed conditions determine when they apply.
Attacks · transformed form
Attack
DMG X
Fire X
Type
Endurance
Rally ×
Impact
Condition / detail
R1
1.00
1.00
Blunt / Fire
40
0.50
Heavy
sweeping arc is good for crowds; untricks after the first attack
→ R1 (2e)
1.02
0
Blunt
25
1.02
Normal
sweeping arc is good against crowds
→ → R1 (3e)
1.04
0
Blunt
25
1.04
Normal
sweeping arc is good against crowds
R1 (backstep)
1.00
1.00
Blunt / Fire
30 (+10)
0.50
Normal
R1 (roll)
1.00
1.00
Blunt / Fire
30 (+10)
0.50
Normal
R1 (forward quickstep)
1.00
1.00
Blunt / Fire
30 (+10)
0.50
Normal
R1 (side quickstep)
1.00
1.00
Blunt / Fire
30 (+10)
0.50
Normal
R1 (running)
1.10
1.10
Blunt / Fire
50 (+X)
0.55
Normal
R2
1.30
1.30
Blunt / Fire
60
0.65
Heavy
sweeping arc is good against crowds
R2 (charged)
1.80
1.80
Blunt / Fire
90
0.90
Massive
continuously hold R2 to execute
R2 (backstep)
1.20
1.20
Blunt / Fire
50 (+10)
0.60
Heavy
R2 (running)
1.45
1.45
Blunt / Fire
70 (+X)
0.70
Heavy
R2 (forward jump)
1.50
1.50
Blunt / Fire
75
0.75
Massive
tap forward on the stick just as you press R2 to execute
Transform Attack
0.80
0.80
Blunt / Fire
25 (+X)
0.40
Normal
press L1 while performing another action to execute; forced Guard Break
Plunge Attack
1.50
1.50
Blunt / Fire
75
0.75
Massive
press R1 or R2 while falling to execute
Plunge Attack (2nd hit)
0.90
0
Blunt
-
0.00
Normal
Plunge (AoE)
Damage × and rally × are multipliers specific to each attack. The listed conditions determine when they apply.
Gems · variants
Variant
Gem slots
Boom Hammer
Radial · Waning · Radial
Uncanny Boom Hammer
Radial · Triangle · Radial
Lost Boom Hammer
Radial · Triangle · Waning
Variants change the gem slots; the upgrade table retains the weapon’s stats.
Acquisition · wiki details
Normal: Treasure in (The Old Hunters DLC) : Hunter's Nightmare ; before Grand Cathedral turn right and head down the tunnel, across the Turret Bridge and inside the building's lower floor is the Boom Hammer alongside the trap, so beware. If you need further assistance to find the weapon, you can follow the full Hunter's Nightmare Map . Uncanny: Sold by : Chalice Bath Messengers & Patches, the Spider ; Pthumeru L1, main area, 8i29rqz3 - [ video ] Lost: Sold by : Chalice Bath Messengers & Patches, the Spider ; Pthumeru L1, main area, 8i29rqz3 - [ video ]
Stats and requirements
Attribute
Value
Strength required
14
Skill required
8
Durability
100
Temporary buffs
No
Base rally
45 ( no upgrade )
Build affinities
Attribute
Value
Attributes recommended by the wiki
Strength, Strength/Arcane hybrid
Elemental conversion
No
Base damage · weapon +0
Damage type
Value
Physical
90
Blood
-
Arcane
-
Fire
60
Bolt
-
Published base attack power, before attribute bonuses, gems and the target’s defence. Wiki damage types: (Blunt/Fire).
Purchase · prices and conditions
Merchant
Daytime
Evening
Night
Blood Moon
NG+
Sell
Condition
Bath Messengers [ Hunter's Dream ]
-
-
28000
28000
28000
14000
Boom Hammer
Chalice Bath Messengers [ Chalice Dungeons Common ]
-
-
28000
28000
28000
-
Boom Hammer
Patches, the Spider [ Chalice Dungeons Rare ]
-
-
28000
28000
28000
-
Boom Hammer
Upgrades · damage and rally
Upgrade
Regain
Physical
Fire
+0
45
90
60
+1
47
99
66
+2
49
108
72
+3
51
117
78
+4
53
126
84
+5
55
135
90
+6
57
144
96
+7
59
153
102
+8
61
162
108
+9
63
171
114
+10
65
180
120
Rally: base recoverable HP; the multiplier for the specific attack is then applied.
Upgrades · attribute scaling
Upgrade
Strength
Skill
Bloodtinge
Arcane
+0
C
E
-
D
+1
C
E
-
D
+2
B
E
-
D
+3
B
E
-
D
+4
B
E
-
D
+5
B
E
-
D
+6
B
E
-
D
+7
B
E
-
C
+8
B
E
-
C
+9
A
E
-
C
+10
A
E
-
C
Upgrades · materials and costs
Upgrade
Slots
Shards
Twin shards
Chunks
Rocks
Echoes
+0
0 / 3
-
-
-
-
-
+1
1 / 3
3
-
-
-
260
+2
1 / 3
5
-
-
-
320
+3
2 / 3
8
-
-
-
380
+4
2 / 3
-
3
-
-
440
+5
2 / 3
-
5
-
-
500
+6
3 / 3
-
8
-
-
560
+7
3 / 3
-
-
3
-
620
+8
3 / 3
-
-
5
-
680
+9
3 / 3
-
-
8
-
740
+10
3 / 3
-
-
-
1
800
Each row shows the cost of that upgrade level, not the cumulative total.
Attribute scaling · exact coefficients
Upgrade
Strength
Skill
Bloodtinge
Arcane
+0
0.60
0.15
0.00
0.41
+1
0.63
0.16
0.00
0.43
+2
0.66
0.17
0.00
0.45
+3
0.69
0.18
0.00
0.47
+4
0.72
0.19
0.00
0.50
+5
0.75
0.20
0.00
0.52
+6
0.78
0.21
0.00
0.54
+7
0.81
0.22
0.00
0.56
+8
0.84
0.23
0.00
0.58
+9
0.87
0.24
0.00
0.61
+10
0.90
0.25
0.00
0.63
A coefficient does not directly give final damage. The bonus also depends on the attribute level and base damage.
Attacks · normal form
Attack
DMG X
Fire X
Type
Endurance
Rally ×
Impact
Condition / detail
R1
1.00
0
Blunt
25
1.00
Normal
sweeping arc is good against crowds
→ R1 (2e)
1.02
0
Blunt
25
1.02
Normal
sweeping arc is good against crowds
→ → R1 (3e)
1.04
0
Blunt
25
1.04
Normal
sweeping arc is good against crowds
R1 (backstep)
0.90
0
Blunt
20 (+10)
0.90
Normal
R1 (roll)
0.90
0
Blunt
20 (+10)
0.90
Normal
R1 (forward quickstep)
0.90
0
Blunt
20 (+10)
0.90
Normal
R1 (side quickstep)
0.90
0
Blunt
20 (+10)
0.90
Normal
R1 (running)
1.10
0
Blunt
35 (+X)
1.10
Normal
R2
1.35
0
Blunt
45
1.35
Heavy
sweeping arc is good against crowds
R2 (charged)
1.90
0
Blunt
70
1.90
Massive
continuously hold R2 to execute
R2 (backstep)
1.20
0
Blunt
40 (+10)
1.20
Heavy
R2 (running)
1.45
0
Blunt
55 (+X)
1.45
Heavy
R2 (forward jump)
1.50
0
Blunt
50
1.50
Heavy
tap forward on the stick just as you press R2 to execute
Transform Attack
0.80
0.80
Blunt / Fire
25 (+X)
0.40
Normal
press L1 while performing another action to execute; forced Guard Break
Plunge Attack
1.50
0
Blunt
50
1.50
Massive
press R1 or R2 while falling to execute
Plunge Attack (2nd hit)
0.90
0
Blunt
-
0.00
Normal
Plunge (AoE)
Damage × and rally × are multipliers specific to each attack. The listed conditions determine when they apply.
Attacks · transformed form
Attack
DMG X
Fire X
Type
Endurance
Rally ×
Impact
Condition / detail
R1
1.00
1.00
Blunt / Fire
40
0.50
Heavy
sweeping arc is good for crowds; untricks after the first attack
→ R1 (2e)
1.02
0
Blunt
25
1.02
Normal
sweeping arc is good against crowds
→ → R1 (3e)
1.04
0
Blunt
25
1.04
Normal
sweeping arc is good against crowds
R1 (backstep)
1.00
1.00
Blunt / Fire
30 (+10)
0.50
Normal
R1 (roll)
1.00
1.00
Blunt / Fire
30 (+10)
0.50
Normal
R1 (forward quickstep)
1.00
1.00
Blunt / Fire
30 (+10)
0.50
Normal
R1 (side quickstep)
1.00
1.00
Blunt / Fire
30 (+10)
0.50
Normal
R1 (running)
1.10
1.10
Blunt / Fire
50 (+X)
0.55
Normal
R2
1.30
1.30
Blunt / Fire
60
0.65
Heavy
sweeping arc is good against crowds
R2 (charged)
1.80
1.80
Blunt / Fire
90
0.90
Massive
continuously hold R2 to execute
R2 (backstep)
1.20
1.20
Blunt / Fire
50 (+10)
0.60
Heavy
R2 (running)
1.45
1.45
Blunt / Fire
70 (+X)
0.70
Heavy
R2 (forward jump)
1.50
1.50
Blunt / Fire
75
0.75
Massive
tap forward on the stick just as you press R2 to execute
Transform Attack
0.80
0.80
Blunt / Fire
25 (+X)
0.40
Normal
press L1 while performing another action to execute; forced Guard Break
Plunge Attack
1.50
1.50
Blunt / Fire
75
0.75
Massive
press R1 or R2 while falling to execute
Plunge Attack (2nd hit)
0.90
0
Blunt
-
0.00
Normal
Plunge (AoE)
Damage × and rally × are multipliers specific to each attack. The listed conditions determine when they apply.
Gems · variants
Variant
Gem slots
Boom Hammer
Radial · Waning · Radial
Uncanny Boom Hammer
Radial · Triangle · Radial
Lost Boom Hammer
Radial · Triangle · Waning
Variants change the gem slots; the upgrade table retains the weapon’s stats.
Acquisition · wiki details
Normal: Treasure in (The Old Hunters DLC) : Hunter's Nightmare ; before Grand Cathedral turn right and head down the tunnel, across the Turret Bridge and inside the building's lower floor is the Boom Hammer alongside the trap, so beware. If you need further assistance to find the weapon, you can follow the full Hunter's Nightmare Map . Uncanny: Sold by : Chalice Bath Messengers & Patches, the Spider ; Pthumeru L1, main area, 8i29rqz3 - [ video ] Lost: Sold by : Chalice Bath Messengers & Patches, the Spider ; Pthumeru L1, main area, 8i29rqz3 - [ video ]
