Planeswalkers remain popular characters, and the Modern Horizons 3 flip-walkers show that they are as popular as ever
This prevents spells from resolving without actually countering them
But having to commit to casting a four-drop every turn can tie up a lot of mana, so you need to be smart about your plays and maximize your attacks
While this deck has very cheap spells, mostly 1-mana ones, you have ways to manipulate the top of your library to ensure you always get the right spell for when your opponents try to resolve theirs, making Counterbalance a great rattlesnake effect
The deck additionally features a number of acceleration spells including mana rocks (Chromatic Lantern, Gilded Lotus, Arcane Signet, Blitzball, Commander's Sphere, Sol Ring) to help accelerate out your spells and allow you to cast them ahead of curve, as well as removal spells and counter effects (many of which are costed to trigger Y'shtola) to deal with your opponent's largest threats