I don't see why you would start from the premise that "AST is considered a pure healing job that Therefore, any spells that apply barriers should be removed or reworked." so first, fundamentally disagree with you there. Just as there is no need to completely remove any regen skills where there exist on shield healers, do you want to remove regen skills like the fairy regen or sacred soli regen, for example?

Secondly, you're re-introducing card changes into the bole, etc that I imagine that you miss. personally i don't want to introduce fishing for that just the right combination out of all those permutations, which is what you introduce when 6 variables are thrown into selection. I do realize that you're re-working redraw and trying to improve Astrodyne but I don't think that Astrodyne is so significant and the current change to divination works out better and is more significant overall in EW.