There are a few things you can do if Thunder Wave is a major annoyance. I recommend having a status absorber in general, but if your team has a Gyrardos, you will need something that is immune to the inevitable electric attacks people will use to counter it.
Electric Absorbers. This has been pretty much covered with Jolteon or ground types. I prefer Choice Specs Jolteon (although I don't use baton pass on mine) over anything else. You do get walled by Blissey but she's set-up fodder for a different physical sweeper if you build your team correctly. You could also use Lanturn or Electivire to absorb these attacks, but Jolteon is by far the best.
As far as absorbing status in general goes, there are a few other things you can do.
1. Natural Cure -- a few pokemon, most noteably Blissey, Starmie, and Celebi, have the ability to heal from status when they switch out. Just switch in on the predicted status move, and switch out, and you're all healed up. This is less effective than other methods, though.
2. Use a Cleric -- Aromatherapy Blissey, Heal Bell on your Miltank, Dragonite, Celebi, or anyone else can heal your whole team from any status.
3. Refresh/Safeguard -- the addition of Latias to OU provides you with a couple of great options. You can put refresh on Latias, and swith in on status inflictors, refresh, and set up. You can also use safeguard as a preventative measure to protect your whole team from status. Other pokemon like Dragonite get these moves also.
4. Taunt -- Putting taunt on a set-up sweeper like Gyrardos or a baton passer like Gliscor makes it impossible for your opponent to status you.
5. Substitute -- If you're faster, you sub, and you block status as long as your sub is up. If you're lower, you can use the lum berry to block the 1st attempt at status and sub up, blocking further attemps.
6. Lum Berry -- The lum berry is a 1 time use item that will cure any status inflicted. Pretty self-explanitory.
7. Rest/Sleep Talk: Often Called Rest/Talkers, generally bulky pokemon with the moves rest and sleep talk (like Suicune) can use rest to eliminate status inflicted on them.
Electric Absorbers. This has been pretty much covered with Jolteon or ground types. I prefer Choice Specs Jolteon (although I don't use baton pass on mine) over anything else. You do get walled by Blissey but she's set-up fodder for a different physical sweeper if you build your team correctly. You could also use Lanturn or Electivire to absorb these attacks, but Jolteon is by far the best.
As far as absorbing status in general goes, there are a few other things you can do.
1. Natural Cure -- a few pokemon, most noteably Blissey, Starmie, and Celebi, have the ability to heal from status when they switch out. Just switch in on the predicted status move, and switch out, and you're all healed up. This is less effective than other methods, though.
2. Use a Cleric -- Aromatherapy Blissey, Heal Bell on your Miltank, Dragonite, Celebi, or anyone else can heal your whole team from any status.
3. Refresh/Safeguard -- the addition of Latias to OU provides you with a couple of great options. You can put refresh on Latias, and swith in on status inflictors, refresh, and set up. You can also use safeguard as a preventative measure to protect your whole team from status. Other pokemon like Dragonite get these moves also.
4. Taunt -- Putting taunt on a set-up sweeper like Gyrardos or a baton passer like Gliscor makes it impossible for your opponent to status you.
5. Substitute -- If you're faster, you sub, and you block status as long as your sub is up. If you're lower, you can use the lum berry to block the 1st attempt at status and sub up, blocking further attemps.
6. Lum Berry -- The lum berry is a 1 time use item that will cure any status inflicted. Pretty self-explanitory.
7. Rest/Sleep Talk: Often Called Rest/Talkers, generally bulky pokemon with the moves rest and sleep talk (like Suicune) can use rest to eliminate status inflicted on them.