The +5% from the 3 seal effect is surprisingly small, maybe 80-100 potency. Lord/Lady is a worse source of dps loss via bad rng.

Astrodyne is in a weird spot where it basically exists for flavor. As a button, it's just a second Lucid with some fluff potency to give the illusion that managing your seals rewarded you, without actually giving you much reward because that's hard to balance. Lord/Lady similarly exists for the illusion of flavor and to try and calm the players who wanted old AST cards back, but really it's 2 buttons that don't do much.

They really didn't know what to do with cards that wouldn't give AST even more ridiculous heal power or dps, so they've given us button bloat filler to keep us happy for now until they figure out what to do.