Cards like Rule of Law, Deafening Silence, and Aura of Silence will stop other decks from going off too quickly. You also have hate in artifacts like Trinisphere, Uba's Mask, and Thorn of Amethyst.

While assembling this combo you have hatebears in the form of Thalia, Guardian of Thraben, Drannith Magistrate, Aven Mindcensor, Esper Sentinel, and Hushbringer, among others.

Mother of Runes and Giver of Runes protects your combo from spot removal or activated abilities if needed. Scrapyard Recombiner can also find Ballista, and Triskelion is basically a second copy. Ranger of Eos and Ranger-Captain of Eos will tutor Walking Ballista, and you can find them by sacrificing a 2-drop to Pyre of Heroes. Of course, hoping to draw your other combo piece naturally doesn’t make this deck very competitive. The deck slows down the game by playing hatebears and stax/prison stuff, all while having one of your combo pieces in the command zone. First up is the Heliod, Sun-Crowned plus Walking Ballista combo.

Budget legacy dredge