Do you think I can beat the Elite Four with this "team"?

[Jazzy.]

Raichu @ --- Lvl56
Gentle Nature
- Thunderbolt
- Thunder Wave
- Mega Punch
- Brick Break

Articuno @ --- Lvl57
Lonely Nature
- Ice Beam
- Aerial Ace
- (filler)
- (filler)

Charizard @ --- Lvl56
Naughty Nature
- Flamethrower
- Wing Attack
- Dig
- Mega Kick

Lapras @ --- Lvl57
Modest Nature
- Surf
- Ice Beam
- Shock Wave
- Body Slam

 

[Shuckle]

Is this team over level 55? Does this team consist of a legendary pokemon? Do you have money for some revives and stuff like that?

If you answered yes to all of these questions, then even YOU, couch potato, can beat the elite four.

 

[Toothache]

Raichu: Consider Quick Attack over Mega Punch, much more accurate and gives you the ability to finish off low health Pokemon that may be a threat later on.

Articuno: Consider Fly to give you a way to evade Lance's Hyper Beams, then finish off his dragons before they can attack.

Charizard: Put Metal Claw over Mega Kick, more accurate and can do some super-effective damage on Bruno's Rock types if you need to.

Lapras: One of my favourite water types. Get Thunderbolt over Shock Wave if you can afford it (4000 Coins from Celadon Game Corner). Otherwise the rest is fine.

Also, is this the only four Pokemon you are using for the Elite Four?

 

[Jazzy.]

Thanks guys! And yeah.. 4 Pokemon are easier to raise than 6, besides Articuno was already lvl 50 when I caught it. To be honest I was going to try my luck with Raichu, Charizard and Lapras *only* but then I thought about the PP (it's evil o.o, I even have trouble with it when training). I won't use these Pokes for competitive battling anyway, they have messed EVs, wrong personalities (Modest Lapras was luck), wrong movesets and I'm not sure about the DVs.. -.-

 

[Mana Lugia]

Potions and revives > Elite four. Besides, all the pokemon have a decent STAB attack that they can use, so yes.

 

[Phlemingo]

Raichu: Consider Quick Attack over Mega Punch, much more accurate and gives you the ability to finish off low health Pokemon that may be a threat later on. Elite four idiots like to use potions...when pokemon are at low health. Better to use a high powered attack to take out the last bit.

Articuno: Consider Fly to give you a way to evade Lance's Hyper Beams, then finish off his dragons before they can attack. If Hyper Beam misses, they don't need to recharge. Besides, wouldn't a straight Ice Beam do it?

Charizard: Put Metal Claw over Mega Kick, more accurate and can do some super-effective damage on Bruno's Rock types if you need to. But rock types have high defense, and then would finish Charizard off easily with Rock attacks. Best leave Bruno's Onixes to some other pokemon?

Lapras: One of my favourite water types. Get Thunderbolt over Shock Wave if you can afford it (4000 Coins from Celadon Game Corner). Otherwise the rest is fine.

Also, is this the only four Pokemon you are using for the Elite Four?

Yup, the Lapras is fine.