Sticking with big numbers, Curious Colossus is a 7/7 that makes everyone elses creature a 1/1
Maybe it's just folks taking their medicine and including ways to exile other's graveyards, but knowing Commander players, I'm dubious
It's got hands, and it's standing in the middle of some ruins, so maybe it's an abandoned statue holy ****, thats Kozilek
You can be more intentional with it, setting up top-decks and infinite combos with mana-reduction abilities plus cards that let you play from the top of your library
Ral, Crackling Wit Ral, Crackling Wit seems powerful, but so did Jaya, Fiery Negotiator and we know how much shes played in Standard
Ouroboroid This 1/3 Plant Wurm might not look like much until combat begins and your entire board sprouts like it drank Miracle-Gro concentrate