Balance update

Airbending:

AirSwipe:

- cooldown 1.7 seconds (from 1 seconds)

- decreased charge damage by 50%

AirPunch:

- Damage 1 (from 2)

AirSucction:

- cooldown 1.5 seconds (from 0.5 seconds)

Chiblocking:

WarriorStance:

- Damage 3 (from 2)

RapidPunch:

- Damage 2 (from 1)

Increased Chi Blocking Chance

Firebending:

Discharge:

- damage 3 (from 2)