This is a post from "Empoleon/Terrakion Viability" in the Competitive Collective:
My match against Darkrai/Tornadus from BR, first round of top 4 cut.
In the first game, he opened with Smeargle and Darkrai (attaches one energy), his turn two he uses Dual ball for two Tornadus EX's (junk arm'd two Dark energy and used Dark Patch on Darkrai), first KO was turn two, me KOing the Smeargle with Eartquake. He pulls up the Tornadus EX with no Eviolite and attaches a DCE to it, plays Shaymin to get the Dark Energy (one one each Tornadus) from Darkrai, hits for 80, but has to discard, drops the Dark Energy, takes 20 from Rocky Helmet. I Top Deck Ruins of Alph, play it, N'd, and hit a Max Potion, healed, attached another Energy and Earthquaked (Tornadus at 80), He attaches a Eviolite to benched Tornadus and attaches a Dark to the active, attacks, I attach to bench (bench has two energy now) and earthquake, it had 10 damage left, he KO'd my Active Donphan and KO's himself. The second one took a bit quicker. I hit for 70, he hit for 80 (Tornadus EX at 100 damage on it), I Junk Armed for a Plus Power, hit for 80. From there he Patched Darkrai and KO'd me. I throw up my third and last Donphan (prized Phanpy stopped #4). I Eathqauke, he hits for 100 (special dark and claw) I max potion, attach and Earthqauke again.
So you hit a basic, a stage 1, and energy, and 3 unsearchable trainers through sheer luck. He got a basic, 3 energy, not one of his own unsearchable trainers, and flips tails on a coin flip. See how the way you dealt with that first Tornadus could be considered extremely lucky and just a fluke? The second one was also the same, pulling out a harder to set up Pokemon and tons of unsearchable trainers. You can't count on that happening consistently. Also, had they taken the time to use the first attack somewhere to discard your RoA, you probably would have lost that prize trade anyway.
Game two went about the same, but was just, horrible. The first Tornadus EX didn't hit for 80 like the other guy, but instead hit for 40 with my T1 Ruins (thought it was great, turned out not to be), I hit for 60, he attaches and KO's me, I return KO'd with benched (three energy). He Catchers up my other bench (No Energy) plays Dark Patch onto Darkrai, attaches DCE to Tornadus with an Eviolite, plays Energy Switch (haven't seen that card in a long time) and hits for 80. I attached (No Switch in hand.>.<) an energy to active, hit for 40 (Tornadus EX stays at 40, no Rocky Helmet on my Donphan) He KO's me, I come back and hit for 70. He hits for 80, I KO him, he KO's me with Darkrai...I ended up with a fresh Donphan with three energy, use your imagination.