Blue buff

[Saksoy]

What is this blue buff people talking about? Came back after my hibernation. Is it the tab button on the KFM group buff?

 

Thanks 

[LunaticAzure]

Yes it is, Assassins tab is also blue buff, they also share a forced period of time where you can't activate the other. 

[Kisagii]

The skill is called "Fighting Spirit" on sins it is their "v" skill and on KFMs it's on their "tab" skill

[Shuchin]

just for completeness:

 

In the PVP scene there can be slight confusion, with the term "blue buff" also being used for the destroyer choice of Persistence over Fury.

However it's usually clear from context which kind of blue buff is meant.