For the purpose of this guild, there will be only 4 status effects.

Poison:

Poison causes gradual damage each turn. If left untreated, it will last about 4 turns.

Amnesia:

Amnesia causes you to forget your special attacks. This will last 10 turns if left untreated.

Sleep:

While asleep, you cannot attack or defend. And any attack that is landed on you will be a critical. However, after being attacked, you will be awakened.

Paralysis:

While paralyzed, you cannot move. You can still attack, however. Paralysis lasts 5 turns unless treated.