These fetch your way better cards but have the added flexibility of getting whatever you need for your current situation, like a board wipe to reset the board, or a Skullclamp if you need some draw
How Do You Stop Extra Turn Spells
Control the board with counters (Absorb, Negate, Thought Collapse, Didnt Say Please) and sweepers (Fumigate, Time Wipe)
I know that sorcery speed burn thats cheap, unscaleable, and without an option for card advantage (like Fireball, Firebolt, and Pyrotechnics) doesnt tend to get played much
Hey look, if Im spending that much mana on a creature anyway, I want to get something big out of my investment, you know
Dovins Automaton Probably technically worse than the previous card, but Dovin's Automaton might be fine in some kind of Tezzeret or artifacts and planeswalkers deck