Another solution is simply to play Destructive Flow in a deck full of cheap cards and kill your opponent with one- and two-drops while no one can cast anything bigger
If you have more land than your opponent, or if your spells are cheaper than their counterspells, or if (as above) you have instants to lead with during their end step, it can pay to save threats in hand until they exceed the number of solutions your opponent can pay for, regardless of if they have them
Take a look at all the showcase treatments, borderless cards, extended-art variants, Enchanting Tales, and more
She goes hard with Spore Frog, Plaguecrafter, Secrets of the Dead, you name it
For flippers and investors, grading is a key part of the process