Just casting him and getting him to live through your turn is devastating enough for your opponent, and he's a strong win more card if you're already leading
This would have been exceptional at one point, but it seems to be the new normal with Universes Beyond setsit's roughly equivalent to Marvel's Spider-Man (only 98 commanders, but that was a special small set)
If you draw the cards in the right order, you win, easily
Now there's nothing to fear from blockers, or fog effects, and you can kill everyone without connecting, at instant speed
For example in this deck, with a heavy ramp strategy and Gishath, Suns Avatar, we expect to be able to cheat/ramp our bigger Dinosaurs into play rather than actually cast them and with Gishath, Suns Avatar that is much more consistent than the statistics numbers shown