The burst should be completely guaranteed, and not reliant on hitting the 30% crit chance on execute to achieve it. The cd should instead just provide a larger increase in damage rather than including crit chance. Causing it to be just as impactful but not crit. Because being crit based makes it feel infinitely worse for both sides. When you press your big button and it doesn’t crit it just feels kinda useless sometimes but on the other side if it crits it just feels like you lost to rng.
Crit actively turns the game into gambling half the time. Oh this guy pressed a cd, I should be completely fine trading this cd unless they hit the random 10% chance to just kill me through it. It just punishes or rewards players unjustifiably.