To make draw redundant they would have to remove charges on draw because the system doesn’t have the capacity to draw automatically but not draw a second card until the first one is played but then draw that second card automatically once the first one is played if draw was off “cd” like how we interact with draw right now
The closest they could simulate it would be to change cards into a coda style gauge where it tracked how many of each card you currently have stacked up to a max (similar to addersgall) that you had to play in a specific order
Honestly while I don’t like healers losing any more complexity if I was to try to fix AST’s burst window problems I’d probably just make draw and play damage neutral GCD’s (or leave draw as an oGCD and play as a GCD), the card could just do it’s effect plus do a =fall malefic 2 potency AOE around the target of the card (which would also fix AST trash AOE damage), to compensate for the slower burst window they could decrease DIV’s percentage but increase its length, so you are rewarded for having all 3 cards running in the period of the div window that most aligns with the other shorter buffs like tech step
