Lum's item throw should DEFINITELY come out of his hat. MAYBE his jacket MIGHT be acceptable ; )
I feel like Argagarg's normals and throws should probably demonstrate a sort of deliberate minimalism to his movements, suggesting that he's a pacifist who will fight back, but only using the minimal amount of violence necessary, and the staff definitely gives him a sort of air of wisdom and deliberateness. You could do a lot of neat stuff, animation-wise, with four arms and a staff, well beyond mimicking the Yomi cards. Obviously his specials and supers should indicate a sort of "I'm through holding back, because it's time to end this now" attitude, but I feel like his normals should definitely indicate a sort of economy of movement, like you might associate with a kendo master or something. Like, maybe for his Yomi Counter you see him move juuuuust out of the opponent's grasp and swing around them and knock them down in a single, fluid motion, like something out of aikido? Come to think of it, aikido-with-a-staff seems like a really good way to condense how I imagine Argagarg's fighting style.
Geiger's animations feel surprisingly good overall even as placeholders, even if his Timekick is a bit more Genocide Cutter than Flash Kick (which, to this SNK fan, is hardly a problem). Obviously his b.A step-in kick could use some tweaking, but on the whole his placeholders look a whole lot more presentable than most. Maybe some sort of time-stop effect on his backward throw, where he sneaks behind the opponent and hits them from behind while they're trying to figure out where he went? Obviously a time-stop effect on his Yomi Counter is non-negotiable. ; )