He takes forever to get to ultimate status, and his ultimate doesnt set you up for victory very well
That said, Force of Will has also been consistently a major player in lots of fast combo decks that just want to force through their combo or keep a crucial piece of interaction from ever hitting the table, on their opponents side
Convoke makes it easier to cast in creature-heavy decks, and copying any creature on the battlefield gives it broad application
When you cast a spell with offspring, you may pay an additional cost
And then, the -1 turns all that life you're gaining into damage that can target opponents' faces or their board
There was a lhurgoyf cycle in Odyssey and there have been a few here and there over the years, including one in Dominaria United , and a chunk in Modern Horizons 3