For me the reason I went for RKF this time (I'd usually go for SO-DO or SHODO) is because of the form change gimmick which the SO-DOs didn't have. Same goes for Geiz Revive, Blades Daisenki, Ark and probably a couple others I'm forgetting. I'm definitely convinced to not be lured in by that again...

They used a universal holding hand?? That definitely explains a lot, yikes.

The secret sounds inside DX SworDriver is Dino Rider. :D

https://www.youtube.com/watch?v=-n7JQ228G90