System: None; this power is always active.
System: For every blood point spent, the air temperature is lowered by ten degrees Fahrenheit. If the temperature is brought below 32 degrees (freezing), all other Kindred, unless immune to cold, receive +1 to the difficulty on all dexterity-based rolls. If the temperature is brought below zero degrees, All other Kindred must leave the area or be frozen in about five minutes.
System: Spend one blood point and roll Manipulation + Cryonesis (dif. 7).
System: Roll Willpower (dif. 7) and spend one point of Willpower for each turn.
System: Spend three blood points and then you and your opponent engage in a resisted Willpower test. If you succeed, the target is frozen solid and takes seven points of aggravated damage that cannot be healed until the target defrosts.