Cold as Ice

Cold as Ice is not always as useful as other damage buffing Traits, as the only way to get any damage bonus out of the Trait, the enemy has to be facing you, which in most cases, will only be before the first shot. Once an enemy is focused on you, you'll have an extremely difficult time shooting their back again. (Having co-op partners can help with this as one can be the distraction while the other goes behind the target.)

How to obtain this Trait
(Requires a second player) Walk into Brabus's boss arena and start the dialogue, before selecting any dialogue though, have the other player walk in, this will start new dialogue. Exhaust the dialogue options, then a fight will start between you and your ally, whoever wins gets the Trait. This means only one person can get the Trait at a time, and the person starting the dialogue cannot have the Pocket Watch otherwise you will be unable to get the trait. If you fight Brabus but don't want to fight each other, have the other players wait outside and exhaust his dialogue options until the fight starts, then have your teammates walk in.