Seven mana is very steep for an artifact that needs other creatures to be successful, though
For me, the tipping point is in the card type creatures are just much better than sorceries, adding the utility of attacking and blocking, paying sacrifice and convoke costs and everything else you need a body for in Magic
Whats more, burn spells have gotten better too
Vigilance, trample, and haste ensure you get into combat, and every point of damage turns into a potential free dinosaur
Sharuum The Hegemon Erayo, Soratami Ascendant A well built Erayo, Soratami Ascendant deck is a sight to behold, capable of going off on T2 consistently