Part of the reason is that artifact synergies are usually pretty easy to modify and have countless available synergy pieces, but I also think Rashmi and Ragavan is a generically powerful value commander
Alternate Effect [Digivolve] Lv.4 w/[TS] trait: Cost 3 Xros Requirements [Digivolve] Lv.4 w/[TS] trait: Cost 3 Tracked marketplace movement from saved price snapshots
So, if you love these dual Energy-wielding cards, then this is one set to pick up
There is a roughly made official app available for the Digimon Card Game that teaches basic mechanics, but it has design flaws and limited scenarios to play
Enchantment - Saga Marionette Apprentice Fabricate 1 (When this creature enters, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.) Whenever another creature or artifact you control is put into a graveyard from the battlefield, each opponent loses 1 life
Take your Synchro Summoning strategies to a whole new universe of speed with new cards inspired by YuGiOh