Blood Rush

Blood Rush
Untransmutable
Statistics
Introduced	Hotfix 18.4.1
Type	Melee
Polarity	Madurai
Rarity	Uncommon
Incompatibility	No conflicts with other equipped mods
Tradable	true
Trading Tax	4,000
Source(s)	Missions: Necralisk Bounty (30-40, 30-40, 30-40) Spy (Lua)

Blood Rush is an uncommon Melee mod that increases critical chance as the Melee Combo Counter increases.

Stats

Rank	Effect	Cost
0	+5.5%	4
1	+10.9%	5
2	+16.4%	6
3	+21.8%	7
4	+27.3%	8
5	+32.7%	9
6	+38.2%	10
7	+43.6%	11
8	+49.1%	12
9	+54.5%	13
10	+60%	14

Notes

• Blood Rush multiplies critical chance based on the Melee Combo Counter tier increase.
  • Without a Combo Counter, Blood Rush provides no bonus to critical chance. At 2x, it increases critical chance by 0.60 × (2 - 1) = 60% and at 3x, it increases critical chance by 0.60 × (3 - 1) = 120%. At the standard max Combo Counter of 12x, it increases critical chance by +660% critical chance.
• Blood Rush does work with quick melee strikes, as they do increase the Combo Counter, which is counted and maintained even if the weapon is not actively equipped.
• Blood Rush cannot be equipped on  Diwata,  Exalted Blade,  Valkyr Talons,  Iron Staff,  Desert Wind, or  Shadow Claws.
• Pairs very well with  Body Count,  Drifting Contact or  Gladiator Rush, which allow players to keep the Combo Counter up more consistently.
• Since thrown attacks from Glaive weapons are affected by the Combo Counter, they will also receive any bonus from Blood Rush.

Calculation

The formula for calculating the increased critical chance reached by the mod is as follows:

Crit Chance = Weapon Crit Chance × [1 + Mod Crit Bonus + Blood Rush Bonus x (Combo Multi - 1)] + Static Crit Bonus

For example, a weapon with 20% base critical chance, modded with maxed  True Steel (+120%) and Blood Rush, and with a Combo Multiplier of 4.0x would reach 20% × (1 + 120% + 60% × (4.0 - 1)) = 80% chance to crit.

The table below displays the critical chance that a melee weapon can achieve depending on its base critical chance and current combo multiplier.

Base Crit Chance	Difference Per Multiplier	Combo Multipliers (No Critical Chance Increase at 1x)
		1x	2x	3x	4x	5x	6x	7x	8x	9x	10x	11x	12x
2	1.2	2	3.2	4.4	5.6	6.8	8	9.2	10.4	11.6	12.8	14	15.2
4	2.4	4	6.4	8.8	11.2	13.6	16	18.4	20.8	23.2	25.6	28	30.4
6	3.6	6	9.6	13.2	16.8	20.4	24	27.6	31.2	34.8	38.4	42	45.6
8	4.8	8	12.8	17.6	22.4	27.2	32	36.8	41.6	46.4	51.2	56	60.8
10	6	10	16	22	28	34	40	46	52	58	64	70	76
12	7.2	12	19.2	26.4	33.6	40.8	48	55.2	62.4	69.6	76.8	84	91.2
14	8.4	14	22.4	30.8	39.2	47.6	56	64.4	72.8	81.2	89.6	98	106.4
16	9.6	16	25.6	35.2	44.8	54.4	64	73.6	83.2	92.8	102.4	112	121.6
18	10.8	18	28.8	39.6	50.4	61.2	72	82.8	93.6	104.4	115.2	126	136.8
20	12	20	32	44	56	68	80	92	104	116	128	140	152
22	13.2	22	35.2	48.4	61.6	74.8	88	101.2	114.4	127.6	140.8	154	167.2
24	14.4	24	38.4	52.8	67.2	81.6	96	110.4	124.8	139.2	153.6	168	182.4
26	15.6	26	41.6	57.2	72.8	88.4	104	119.6	135.2	150.8	166.4	182	197.6
28	16.8	28	44.8	61.6	78.4	95.2	112	128.8	145.6	162.4	179.2	196	212.8
30	18	30	48	66	84	102	120	138	156	174	192	210	228
32	19.2	32	51.2	70.4	89.6	108.8	128	147.2	166.4	185.6	204.8	224	243.2
34	20.4	34	54.4	74.8	95.2	115.6	136	156.4	176.8	197.2	217.6	238	258.4
36	21.6	36	57.6	79.2	100.8	122.4	144	165.6	187.2	208.8	230.4	252	273.6
38	22.8	38	60.8	83.6	106.4	129.2	152	174.8	197.6	220.4	243.2	266	288.8
40	24	40	64	88	112	136	160	184	208	232	256	280	304
42	25.2	42	67.2	92.4	117.6	142.8	168	193.2	218.4	243.6	268.8	294	319.2
44	26.4	44	70.4	96.8	123.2	149.6	176	202.4	228.8	255.2	281.6	308	334.4
46	27.6	46	73.6	101.2	128.8	156.4	184	211.6	239.2	266.8	294.4	322	349.6
48	28.8	48	76.8	105.6	134.4	163.2	192	220.8	249.6	278.4	307.2	336	364.8
50	30	50	80	110	140	170	200	230	260	290	320	350	380

Crit Chance = Weapon Crit Chance × [1 + Mod Crit Bonus + Blood Rush Bonus x (Combo Multi - 1)] + Static Crit Bonus

• Blood Rush Bonus: This is the bonus provided by  Blood Rush based on its rank. Using mods from the Gladiator Set will increase this bonus further. For example, using two Gladiator Mods will effectively bring the total value up to 80%.
• Combo Multi: This is the multiplier from your melee combo counter.
• Mod Crit Bonus: This is the total of all other equipped mod bonuses added together (excluding Static and Blood Rush bonuses).
• Static Crit Bonus: This is the bonus provided by mods like  Cat's Eye (+60%) or special abilities like  Arcane Avenger (+45%). These bonuses stack additively with each other.

A spreadsheet that performs the same calculation, and also allows to enter your Crit Chance % from Crit Mods and the CC% per combo, can be found online here.

Trivia

• Prior to Update 26.0, Blood Rush provided +165% critical chance per combo level. Critical chance was calculated according to the following equation:

Crit Chance = [Base Crit Chance × (1 + Mod Crit Chance) + Static Critical Chance Modifiers] × [1 + (Blood Rush Multiplier × Combo Multiplier)]

Bugs

• If you are client-side and are using the Naramon focus school, being in operator mode when your combo multiplier goes down, can cause your critical change to overstack.

See Also

• Gladiator Mod Set, which has a similar effect.
• Weeping Wounds, the Status Effect equivalent.

Patch History

Update 29.5

• Fixed Blood Rush not applying to Garuda’s Talons (only applies when Talons are the single equipped Melee).
• Fixed return issue with combo stacking Melee Mods (like Blood Rush) not resetting while in Operator with a very specific loadout as Client, as reported here: https://forums.warframe.com/topic/1202616-blood-rush-still-bugged/

Update 29.0

• Now drops from level 30-40 Necralisk Bounties

Hotfix 27.5.5

• Fixed the Blood Rush Critical Chance boost not resetting when the Melee combo counter is reset.

Hotfix 27.5.4

• Fixed Blood Rush bonuses not resetting if you’re the Operator when the Combo expires.

Update 26.0

• Changed from multiplicative to additive with other mods. Now only multiplies base critical chance. Critical chance bonus went from 165% to 60%.
• (Undocumented) Added buff icon.

Update 18.5

• Added as potential reward from Lua Spy missions.

Hotfix 18.4.1

• Added to the game as an event-exclusive drop from Operation: Shadow Debt.

Last updated: Update 26.0