Blood Rush

Blood Rush
UNTRANSMUTABLE
TRADABLE
Max Rank Description
+40% Critical Chance stacks with Combo Multiplier
Statistics
Type	Melee
Polarity	Madurai
Rarity	Uncommon
Max Rank	10
Endo Required To Max	20460
Base Capacity Cost	4
Trading Tax	4,000
Introduced	Hotfix 18.4.1 (2016-01-25)
Internal Name	/Lotus/Upgrades/Mods/Melee/Event/ComboCritChanceMod
Sources
Missions: Necralisk Bounty (Lvl 30-40: Final Stage, Lvl 30-40: Stage 2&3, Lvl 30-40: Stage 4) Spy (Lua)

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

Stats

Rank	Effect	Cost
0	+3.6%	4
1	+7.3%	5
2	+10.9%	6
3	+14.6%	7
4	+18.2%	8
5	+21.8%	9
6	+25.5%	10
7	+29.1%	11
8	+32.8%	12
9	+36.4%	13
10	+40%	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 0.40 × (2 - 1) = 40% and at 3x, it increases critical chance by 0.40 × (3 - 1) = 80%. At the standard max Combo Counter of 12x, it increases critical chance by +440% 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% + 40% × (4.0 - 1)) = 68% 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	0.8	2	2.8	3.6	4.4	5.2	6	6.8	7.6	8.4	9.2	10	10.8
4	1.6	4	5.6	7.2	8.8	10.4	12	13.6	15.2	16.8	18.4	20	21.6
6	2.4	6	8.4	10.8	13.2	15.6	18	20.4	22.8	25.2	27.6	30	32.4
8	3.2	8	11.2	14.4	17.6	20.8	24	27.2	30.4	33.6	36.8	40	43.2
10	4	10	14	18	22	26	30	34	38	42	46	50	54
12	4.8	12	16.8	21.6	26.4	31.2	36	40.8	45.6	50.4	55.2	60	64.8
14	5.6	14	19.6	25.2	30.8	36.4	42	47.6	53.2	58.8	64.4	70	75.6
16	6.4	16	22.4	28.8	35.2	41.6	48	54.4	60.8	67.2	73.6	80	86.4
18	7.2	18	25.2	32.4	39.6	46.8	54	61.2	68.4	75.6	82.8	90	97.2
20	8	20	28	36	44	52	60	68	76	84	92	100	108
22	8.8	22	30.8	39.6	48.4	57.2	66	74.8	83.6	92.4	101.2	110	118.8
24	9.6	24	33.6	43.2	52.8	62.4	72	81.6	91.2	100.8	110.4	120	129.6
26	10.4	26	36.4	46.8	57.2	67.6	78	88.4	98.8	109.2	119.6	130	140.4
28	11.2	28	39.2	50.4	61.6	72.8	84	95.2	106.4	117.6	128.8	140	151.2
30	12	30	42	54	66	78	90	102	114	126	138	150	162
32	12.8	32	44.8	57.6	70.4	83.2	96	108.8	121.6	134.4	147.2	160	172.8
34	13.6	34	47.6	61.2	74.8	88.4	102	115.6	129.2	142.8	156.4	170	183.6
36	14.4	36	50.4	64.8	79.2	93.6	108	122.4	136.8	151.2	165.6	180	194.4
38	15.2	38	53.2	68.4	83.6	98.8	114	129.2	144.4	159.6	174.8	190	205.2
40	16	40	56	72	88	104	120	136	152	168	184	200	216
42	16.8	42	58.8	75.6	92.4	109.2	126	142.8	159.6	176.4	193.2	210	226.8
44	17.6	44	61.6	79.2	96.8	114.4	132	149.6	167.2	184.8	202.4	220	237.6
46	18.4	46	64.4	82.8	101.2	119.6	138	156.4	174.8	193.2	211.6	230	248.4
48	19.2	48	67.2	86.4	105.6	124.8	144	163.2	182.4	201.6	220.8	240	259.2
50	20	50	70	90	110	130	150	170	190	210	230	250	270

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 60%.
• 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 (2019-10-31), 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)]

See Also

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

Patch History

Update 30.5 (2021-07-06)

Melee Mod Nerfs

Blood Rush’s maximum value is being lowered. This changes the achievability of consistent Red Crits from just one Mod (on most Melee weapons, some High-Critical exceptions), and now additional help will be needed via Mods, Arcanes, or Warframe abilities to achieve consistent Red Crits.

One Mod alone generally delivering the best tier of Criticals felt too powerful.

Blood Rush is changing from:
+60% Critical Chance stacks with Combo Multiplier

To
+40% Critical Chance stacks with Combo Multiplier

Update 29.5 (2020-11-19)

• 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 (2020-08-25)

• Now drops from level 30-40 Necralisk Bounties

Hotfix 27.5.5 (2020-05-21)

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

Hotfix 27.5.4 (2020-05-20)

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

Update 26.0 (2019-10-31)

• 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 (2016-03-04)

• Added as potential reward from Lua Spy missions.

Hotfix 18.4.1 (2016-01-25)

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

Last updated: Update 26.0 (2019-10-31)