How bout something that's slightly less OP ;). Bag of Tricks: Skills cooldown from left to right 1 at a time from 7, 8 ,9 , elite. If all on cooldown, 7 skill cooldown decreases by 4 every 1 second. All other skills do not cooldown. Skills not on cooldown only transfer 1/3rd of the cooldown speed (e.g. only 7 on cooldown, only gain 1 + .33 + .33 + .33 = 2s decrease every 1 second). Gave no thoughts about interactions with improvisation. Also if 8 was on cooldown and like only 1s remaining, and then you pop 7, then you have to wait for 7 to go off cooldown until you get 8 back.