What is \"resting Time \" talent Monica (Battle Chasers: Nightwar)

Hi all!
Monica has a talent Repost II . There is a description , such that after applying a repost with a counter attack RELAXATION TIME reduced by 50%!
That time of rest? please tell me!
Is Talan 10 points , supposed to do something cool, but I don't understand exactly how it works.
Thank you!