@serracollector Problem is that the more creatures you play, the less spells you have and the harder it is to actually get this into play (and it's already not easy). A 8/8 that basically can't be killed should be enough by itself, making an extra 8/8 sounds like win-more.
Did no one bother to go look at the WotC mechanic explanations? It's literally where this card was spoiled.
Most of the rules that govern how transforming double-faced cards apply to the new modal variety. While a modal double-faced card is in your hand, your graveyard, or exile, it has the characteristics of its front face only. So, if you're searching your library for a land card, you can't find a modal double-faced card whose front face isn't a land card. If an effect allows you to cast instant spells from your graveyard, you could cast Valakut Awakening, but you couldn't play Valakut Stoneforge.
It is, but as noted, having one in your "opening hand" 100% of the time is a big difference.
Also, while Power Artifact is cheaper and blue, this guy is not prone to 2 for 1 removal on your artifact. If your Monolith gets nuked in response, you don't have to find 2 more pieces to assemble the combo again.
Also now you can run 8 Monolith and 8 reducers if you want, making the combo very easy to assemble without tutors.