Dragoons: A Rotation Reborn

[Dervy]

What does "bis" mean? What exactly is global cool down?

"BiS", or Best in slot, means exactly what it means. Best item in it's item slot.

But, I prefer using "Best in Set", rather than Best in Slot. Best in Set, means it's the best item available, for a particular set, once all items have been obtained.

And exactly as zeth07 said. A "Cool Down" is the term given to an individual skill which has a waiting timer before it can be re-used. The skill is "Cooling Down", hence, "Cool Down". Examples of Cool Down, or CD, abilities are Leg Sweep, Dragonfire Dive, Jump, Blood for Blood. A Global Cool Down is a set Cool Down which applies to majority of your basic Weapon Skill Abilities, like Full Thrust, Chaos Thrust, Impulse Drive etc, hence the use of "Global".

In this game, Global Cool Down, or GDC, is 2.5 seconds long. So all abilities with 2.5s Cool Downs are your "Global Cool Down" skills. It's worth noting that Skill Speed can decrease the GDC, but it's an extremely little amount.