It looks a bit like a Gallantmon/Dukemon preevolution. I like it!

I remember enjoying Xros Wars when it was releasing, but I've had a hard time rewatching it. Maybe one day I will be as wise as yourself

The PicoDevimon in Digimon Story Lost Evolution. It evolves over the course of the game, both into new Digimon forms and into a more likeable character.

Do its hands morph into the weapons or do they come off or something?

The Digimon Reference Book says that the Mamemon species is the second strongest of all Digimon, so my money's on them!