Conquistador de pan
Another way to Imply a good case scenario would be a battle whoever get the status of paralysis first. Let us say its Jirachi's Serene body slam vs Ho-oh's 50% burning Sacred fire. Or Kyogre's Thunder vs Palkia's thunder.
Better yet, the best example would be a battle with 2 Serene Gracers. Who gets the secondary effect first?
Hardly matters. Nobody who isn't insane (which is actually half the PS ladder...) would keep a Haxrachi in against another Haxrachi. If you do, you're in for a hax-filled, extremely frustrating cluster****.