Almost every card in Sorcery is built to lead your advancement or give you some advantage
It can cheat insane creatures like Ulamog, the Defiler, it can get your Portal to Phyrexia down early in the game, the ceiling is very high on this one
While this is a powerful card and creature, it's overall somewhat dull and lacking in actual content
Hypergenesis was a strong deck in Extended at the time of Moderns release, so Wizards was understandably cautious about putting Hypergenesis into a format with an ever-growing card pool
Even when people knew about it, it continued to win, evidenced by the advancements of Mike Long, Top 8 by Alex Shvartsman, and massive improvements to sickestever.dec by Ben Rubin and Brian Kibler
You get to look at the top four cards of your library and then choose which card you want to keep, all for the low cost of two mana