My sister and I were trapped behind a brick wall by a Tyranitar, Dragonite, and Cresselia. But the weird thing is, they were also behind a wall, throwing a near-unlimited amount of grenades. My sister and I went Army of Two style, her getting the attention, while I slipped behind the pool (this was taking place in my backyard), and spied on them. The Cresselia was actually shooting mind blasts that were like grenades, the Dragonite being the only one to throw grenades. The Tyranitar was just standing around eating sandwiches.
They spotted me, and I had to run across the yard right in the path of the thrown grenades, closely evading explosions. I jumped behind my wall, where I met the sight of a grenade. I grabbed it quickly, and threw it, and it exploded a second after it left my hand, knocking down the brick wall, and knocking us down.
I figured out that we had no shelter left, so I basically kamikaze'd, running at the opponents' wall, as they threw those grenades. My eye spotted one with the pin still in it, probably as a result from their haste. I pulled it and threw it, and it blew up behind them. The Cresselia, Dragonite, and Tyranitar started laughing because it missed them. Then I started to laugh, too. They had puzzled looks on their faces, and turned around, horrified. Their grenade supply had gotten caught in the blast, and it blew up, knocking the three down for the count.
After the mess was cleaned up, the Dragonite, covered by dirt and soot, approached me with the Cresselia and Tyranitar behind him. We shook hands, and he said let's do it again sometime, and they took off on motorcycles, into the sunset.