Metalmamemon / DM Deck?

Hey Guys,

First-time TCG, but OG DigiWorld 1 player here!

I've been reading and watching posts and vids on how to get started on a deck, and I'm leaning into the "find your fave digimon and build around it" route.

Now, my fave digimon is Metalmamemon, Andromon, and maybe Machinedramon. I saw a 3yo post here sharing a Mamemon deck ( https://www.reddit.com/r/DigimonCardGame2020/comments/13952aa/i_created_a_mamemon_deck_and_cant_believe_how_fun/ ) and I was excited to hunt for those cards! When I shared this to my local group, they said it's "very old-school" and instead directed me to use a DM Deck. When asked about my other faves, I mentioned the other 2, and they definitely agreed that I should start with a DM Deck.

My question/request is: Would a DM deck that still has Mamemons be pretty strong? They threw around other WinCons like RustTyranomon, which looks pretty awesome to me.

I'm heading to Japan in a few weeks so I think I can hunt for singles there, so don't hold back on the suggestions (unless they cost a fortune x.x)!