I was watching a Mr Happy video showing the AST abilities and started to wonder if my WHM was under powered utility wise but I'm unsure.

I see that we share a lot of abilities with the same function but AST has more unique spells? I was seeing it in terms of WOW healing spells and thinking "they get beacon, and their cure spells procs cure 2 more often".

Is this right? how do the styles differ? What does SCH, WHM, and AST get that the others do not?