Mist continuously regens HP for the weakest ally.
If target HP drops below 30% during mist effect, he/she will be frozen, unable to move or atk, but also immune to all dmg and have improved healing, and when the freeze ends, he/she will have a crit dmg reduction effect for a time.
Freeze effect will not be triggered again for a short time.
At the start of battle, gives an ally a dmg-absorbing shield and a crit dmg reduction effect. Each time a freeze effect is triggered, allies around the frozen unit will receive crit dmg reduction effect.