Many talents have cooldowns, which prevent you from using them in quick succession. Cooldowns are expressed in rounds, representing the number of rounds before you can use that talent again. The cooldown begins counting in the round after you use the talent

Example
You use Blade in the second round of combat. Your blade has a cooldown of 1 round. In the fourth round, you are free to use Blade again

Daily cooldowns should reset when the player finishes their nightly rest. If the player chooses not to rest, daily cooldowns do not reset. If the player's rest is interrupted before completing half their rest, the cooldowns do not reset