Implementing DNC/NIN system for AST Card

[Doozer]

Its mimicking DNC step and NIN mudra.
Hence we can give more impactful buff because the dps loss during card preparation

I see what you're trying to say now, though since healers also have to, y'know, heal, it's a bit trickier to stop to shuffle cards and not be able to heal. Especially with the way some people want to take damage on purpose. That's why it's easier to weave it between GCD skills so it doesn't actually interfere with anything else you need to do.