I was looking at your cleaned Pledge of Tempest album art and noticed that the outfit Grimnir got looks similar to a Rage of Bahamut card! From the cape to the purple arm!
The card is Last Storm Grimnir (I got the art from the official artist here)
Yeah! They've done a similar thing with his Anniversary Outfit which is pretty much just a recolor based on the way he looks in RoB upgraded, just with a new edgy mask and horn, and his lance being pink instead of his hair.
I have mixed feelings on this trend with him, while I do love the outfits (Especially his Pledge of the Tempest outfit, the idol theme in the animations helps make it something new) I want to see fresh new outfits for him... Though they do design cute new outfits for him for merch.
At the same time the natural conclusion for this is peak edgelord chuuni Fantasy Malice Grimnir based on these cards. Please Cygames. It would be so fun it's my ultimate dream unit. Take the idea from these cards and turn it up to 11. Art where he's shrouded in darkness and crying with his red eye flashing and has the Chuuni Chains and then you play the side stories and it's just him fantasizing about how cool it would be Lowain-bros style. His voicelines are edgy broody shit but 1 in 5 of them end with him going "Wait, that might be too scary for the Singularity" or his CA attack lines dragging on at the end like "No! Even if it's just pretend, I can't say that I have no need for friends! I didn't mean itttttttt!"
He Yearns for the Malice