I'm not very high level at all but one thing that I thought might make AST more flexible would be having card draw build up "charges" over time as the cool down expires (think like scholar strategem charges from FFXI ) which allow you to draw a card at the cost of a charge. This way you could draw, royal road and redraw at the cost of two charges instantly.
It's so frustrating pulling spear after spear and waiting so long to redraw, and also this would make it feel less like a waste when you aren't drawing between pulls (since you're still accrueing charges)
