DP133 had the fullblown team attack you are talking about.Okay, so I just found a clip of the massive Team Attack against the TRio.
First, I have been waiting for a moment like that for ages and they delivered it well. I don't think we've ever seen a fill blown team attack ever, unless you count the Thunderbolt/Razor Leaf/Flamethrower/Water Gun moments in the Kanto series.
Second, that TR is still going to follow Ash after that proves just how dumb they are. The "leave me alone" message from Ash has never been clearer than it was in the form of a Thunderbolt, two Flamethrowers, a Leaf Storm, a Hydro Pump, a Focus Blast, an Energy Ball, a Flash Cannon, a Mud Shot and a Stone Edge. Perhaps Bulbasaur should have used Solar Beam as well...
I would say that it would have been nice for all of Ash's pokemon to have been invovled in that attack but I know that a) that's asking too much and b) Tauros, Swellow and Staraptor all lack ranged moves (could've been a cool time to debut one though!)