The upside is interesting here, and in many EDH games, you should be able to mill 25+ cards with Space-Time Anomaly alone
Two Energy for every artifact you cast, combined with a way to bring some of those artifacts back to your hand to cast them again can net you a lot of Energy
But one thing that isnt a mystery any longer
This elemental wizard is a 4/4 creature for a whopping 10 mana, but it costs two less for each different mana value among instant and sorcery cards in your graveyard
Tamiyo, Inquisitive Student Modern Horizons 3 brought us a lot of broken things, but Tamiyo, Inquisitive Student is my personal favorite
Tell you what thoughpull one, and theyre eminently pullableand you can make triple the pack price from anyone hovering at your local card shop