Corrupt Master of Vulnerability
The Corrupt Master of Vulnerability (in-game name Korruptoitunut Turvattomuusmestari) is one of the many Corrupt Masters. It takes the appearance of a humanoid with a shattered mask for a face.
Behavior
The Corrupt Master of Vulnerability casts fast-moving homing projectiles that inflict the 
Vulnerable status effect for 20 seconds. This causes all of the player's Stainless Armour and perk-related damage immunities (if any) to be disabled, and multipliers for all major Damage Types (drill, electricity, explosion, fire, ice, melee, projectile, slice, toxic) are set to 1.2. This makes explosion damage much more deadly, as your starting explosion damage multiplier is 0.35. It also can lead to a quick death if you have the Electricity perk; only the immunity is removed. Suffocatium protection from breathless is disabled.
Additionally, any enemies nearby the master will be given the 
Vulnerable Infusion status effect, allowing them to apply the Vulnerable upon hitting a victim as well.
Like all Corrupt Masters, they will generate a temporary shield to protect themselves upon taking damage.
Combat Tips
- As with all Masters, exercise caution and focus on avoiding the projectiles. This is easily done by constantly moving perpendicular to the enemy's aiming trajectory (which usually means levitating up or falling down) and staying at a medium distance.
- All nearby non-player creatures will be given the infusion status, this can be taken advantage of as it will also give charmed creatures the status, letting your summons inflict the vulnerable status for you.
