I'm still going to level it first and give it a fair shot, it just seems like clunky design on paper. Anyone who raided Savage or Ultimate's with GNB will tell you the forced oGCD's with Continuation was probably the worst part about GNB, which wasn't even that bad given you only had to deal with it every 30sec, though it was still the most challenging part. To see them take what was seemingly the only real issue and make it more frequent just seems like an untested/bad design choice.

There is also the foreseeable issues of No Mercy + Bloodfest bursts not being able to all fit in the No Mercy window, No Mercy falling off before you can fit in Hypervelocity if you end on a Burst Strike, and Heart of Corundum's Excog lasting 30sec in the media tour and being overwritten when used on cooldown. Though the easy fixes for that are to make No Mercy a 22-25sec duration and make the Excog from Heart of Corundum last 20sec or less.