Two-hearted

This information is reliable as of patch 2.0.201.47.

Two-hearted

	Physical
	3
	HeightenedToughness
	no

Two-hearted

---

You have two hearts.
+(level based) Toughness
You can sprint for (level based)% longer.

Two-hearted is a physical mutation that bolsters the player's Toughness and increases their sprint duration by a mutation level based percentage.

Formulas

The following formulas are used to determine Toughness bonus and sprint duration based on mutation level.

Toughness Bonus	(Level - 1) / 2 + 2
Sprint Duration Bonus	20 + ( Level × 10 )

Advancement Table

Mutation Level	Toughness	Sprint Duration
1	+2	+30%
2	+2	+40%
3	+3	+50%
4	+3	+60%
5	+4	+70%
6	+4	+80%
7	+5	+90%
8	+5	+100%
9	+6	+110%
10	+6	+120%

Mutation Level	Toughness	Sprint Duration
11	+7	+130%
12	+7	+140%
13	+8	+150%
14	+8	+160%
15	+9	+170%
16	+9	+180%
17	+10	+190%
18	+10	+200%
19	+11	+210%
20	+11	+220%

Mutation Level	Toughness	Sprint Duration
21	+12	+230%
22	+12	+240%
23	+13	+250%
24	+13	+260%
25	+14	+270%
26	+14	+280%
27	+15	+290%
28	+15	+300%
29	+16	+310%
30	+16	+320%

Advantages & Disadvantages

Advantages

• Grants increased Toughness, which increases the player's health and regeneration rate, and factors into certain saving throws
• Can grant dramatically increased sprinting duration, allowing one to flee a fight or close a gap in melee more easily
• Gaining Toughness through this mutation can allow one to spend their attribute points on other Attributes

Disadvantages

• Moderate cost on character generation
• Relatively low initial Toughness bonus; increases slowly with additional levels