Acquired Immunity

Acquired Immunity (Major) by Mr. Twist

This super power allows the user to gain immunity to another's power for a limited amount of time. The time before the immunity fades is very large, allowing for the user to possibly still be immune on subsequent encounters, as long as they are within the time span. After enough encounters with the same individual's power, a permanent immunity is gained.

Duration: After immunity is acquired, it lasts for 1 week, plus another week at levels 4,7,11, and 14.

Requirements for Immunity: The person must be affected by a specific power once, successfully, before their super immune system kicks in. On the second successful attempt, roll percentile dice to determine if immunity is acquired. A roll of less than 25% means the attempt is useless and the user is immune to any further attempts to be affected by the power. If that roll fails, and they are affected a third time, a roll under 60% is required to gain immunity. On the fourth successful attempt to affect the user, they gain immunity to that power for the duration, also nullifying any effect it currently has on them. The maximum time between attempts before restarting the sequence for possible immunity is one hour.

Conditions for Permanence: If the user ever gains immunity to the same power on three separate occasions, they gain a permanent immunity to that power. Even if this power is somehow negated(such as by Negate Super Abilities), all permanent and temporary immunities return when the power is regained.

Notes: The power only protects against a specific opponent's powers. Other opponents with the same power can affect the user, with the same chances to gain immunities. If the power affecting the user has subpowers, only the specific subpower being used is what the immunity will protect from. If a foe uses a different subpower to affect the super being, then that subpower will work until an immunity is gained. This only gives immunity to powers which affect the user in some way (Yes, this includes Borrow Power and Negate Super Abilities); i.e. you can gain immunity to the APS: Plasma ability to damage by touch, but you still can't touch them because they are intangible. This power is always on until 7th level, at which point the character can decide not to be immune to a specific person's power, though all previous immunities can not be changed. Enhanced PS powers actually affect the person who possesses them, and not the person with this power, so an immunity can't be gained for them.