That would depend on the game since in Ruby and Sapphire, Wallace is a Gym Leader and he has Pokemon such as Luvdisc which is a Water-type, Seaking which is a Water-type, Milotic which is a Water-type, Sealeo which is an Ice and Water-type and Whiscash which is a Water and Ground-type and in Emerald he is the Champion and he has Wailord and Milotic which are Water-types, Tentacruel which is a Water and Poison-type, Gyarados which is a Water and Flying-type and Ludicolo which is a Water and Grass-type. Electric-types such as Pikachu, Jolteon, Ampharos, Zapdos and Raikou can beat most of his Water-types as well as Gyarados, Psychic-types can also beat Tentacruel due to it being part Poison-type, Grass-types can beat Whiscash and either Flying, Poison or Bug-types can beat Ludicolo.
use raqaza
Wallace is the champion. you will find him after you beat the elite4
Go to the Elite 4, and beat them.
you beat Kyougre or catch Kyougre in the cave of origin then when its not raining go to wallace's gym!
you just have to beat Wallace
Beat Wallace/Steven
Go beat Wallace in Solstice city.
sort of you have to beat team aqua 1st
You have to beat his party. Afterwards, you will be inducted into the hall of fame.
1968--beat Hubert Humphrey (D) and George Wallace (3rd party) 1972--beat George McGovern
Get all 8 gym badges then go to ever granade city in the Pokemon league then beat the 4 elites in the elite four and then you'll go to Wallace. If you beat Wallace you'll get a ribbon each for the Pokemon in your party that doesnt have one. TIP: If You want to level up your Pokemon quickly and you defeated them you can visit them again and battle them.
yes, to beat Wallace easily use a Pokemon that knows Surf and is Lv.50-60. Keep using Earthquake on every one of Wallace's Pokemon. When it comes to Milotic, you may need a Revive for your Pokemon as MIlotic is quite strong. Use another Earthquake and Milotic is down. Hooray! YOu just beaten Wallace! Go gather your friends and have a great big party! Now go and beat the Pokemon League and show Champion Steven who really IS the strongest in Hoenn! P.S. If you want to beat him even E-A-S-I-E-R, train your Pokemon to Lv.60. My Pokemon was Blaziken Lv.50. Get the advantage for water and beat Wallace's Pokemon! (I had a easy time even though Wallace was the one with the advantage with his water-types, I had a fire type! Earthquake might be one of the strongest moves, Champion Steven has an Altaria that has that move so be careful! His Pokemon are extreme!
...... stewen in emerald isn't a elite champion. there is wallace.