The artifact requires a pretty high cost to get the chain started, though - four mana (or three and two life) to cast, then two mana (or one and two life), a tapped card and a sacrificed creature to set its ability in motion
The deck features a number of green mana ramp/fetch spells, a full cycle of guildgates, and other lands and spells to get our all your colored mana
But you can interact with it just like you could with any other enchantment if its in play, in the graveyard, in someones hand, in a library, etc
With high-end cards like Rockets Mewtwo ex SAR and Mewtwo VSTAR SAR pulling the market up, this promo has followed suit
The ETB effect only works on permanents that aren't two colors, while the effect on the artifact creature on the back face rewards you for playing two-color cards
Maybe they wanted to avoid paper copies of complicated reconfigure creatures, since those involve a lot of moving pieces already, but the general Magic populace can handle effects like this