Disrupting D&D Spells | Fight and Fizzle | Wandering DMs S07 E20

Dan and Paul coach you in how to disrupt an enemy wizard's spells in D&D. And it varies a lot by what edition you play! From classic editions where casting in combat is strictly prohibited, to those where initiative tells the tale, to later editions where skills and counter-skills try to one-up each other. For house-ruling DMs, what's the fairest mechanic to use?