Serenity is a Perk unlockable in the Contractor.
STATS
- I: Go invinsible for 2 seconds when blocking without being hit for 1.5s.
- II: Go invinsible for 4 seconds when blocking without being hit for 1.5s.
- III: Go invinsible for 6 seconds when blocking without being hit for 1.5s.
- Invincible while invisible!