API CancelUnitBuff

Removes a specific buff from the character. CancelUnitBuff(unit, buffIndex [,filter])

• unit: : UnitId - The unit to cancel the buff from, must be under the player's control.
• buffIndex: - index of the buff to cancel, ascending from 1.
• filter: - any of combination of "HELPFUL|HARMFUL|PLAYER|RAID|CANCELABLE|NOT_CANCELABLE".

• This function does not work for canceling druid forms, rogue Stealth, death knight presences, or priest Shadowform.