I have a super short history of wi-fi battling, especially in 2v2 battles. I currently have only done one battle in that style. The opponent I was facing used this strategy on his team. He opened with a Metagross and a Crobat, and after 2 turns, Fly was used, followed by an Explosion by Metagross. This knocked-out both my pokemon, and he still had Crobat waiting to strike at the start of the next turn.
In D/P, this isn't nearly as popular, thanks to the lack of use of Dive. Ludicalo had a pretty effect movelist in the GBA generation with Toxic/Protect/Dive/Ice Beam, and in the battle tower, this was also quite annoying. Also, pokemon like Kingdra could use this set list. Now, only Dewgong, Wailord, Huntail, Gorebyss, Relicanth, and Manaphy can learn the move, so Dive's stalling capabilities are now quite weak.
In D/P, this isn't nearly as popular, thanks to the lack of use of Dive. Ludicalo had a pretty effect movelist in the GBA generation with Toxic/Protect/Dive/Ice Beam, and in the battle tower, this was also quite annoying. Also, pokemon like Kingdra could use this set list. Now, only Dewgong, Wailord, Huntail, Gorebyss, Relicanth, and Manaphy can learn the move, so Dive's stalling capabilities are now quite weak.