I was thinking, instead of the solid line "outline" around the two swords, why not change it to more of a "glow" like on the tip of the 3*, 4* and 5* versions of the Snarble Barb?
Offer feedback on other possible variants if you want.. I just think the DA and GF look unimpressive for their power at the moment.
They've actually been redesigned in the past, although the Sealed Sword got the biggest overhaul.
They already look more impressive now than they did before, and they do glow, they just don't leave a trail everywhere they've been.
~Sev