The final challenge at the Pokemon League is against the Elite Four, a supergroup quartet of powerful trainers who use the game's most powerful types. Though each one has a "main" type, it's more accurate to say they specialize in two types, mostly ones that cover the bases of another. You'll need an incredible team to beat them; anything less than that (bar using an absurd amount of items) will only give you trouble. I recommend having a team at the high end of being Level 40s or early 50s when going in. You can't stop to heal at the Pokemon Center or buy more items at the Poke Mart so be fully prepared going in.

In Pokemon Yellow, the Elite Four members do not have different Pokemon but rather different movesets, often times far superior to the ones in Red and Blue. Be warned that the same tricks you used in those games may not work in this one.

The single best Pokemon for this challenge is none other than Lapras. It will wall Lorelei's team and strike back with Thunderbolt, decimate Bruno with a mixture of Psychic and Surf, rip through Agatha's team with Psychic, and completely destroy Lance with Ice Beam. I highly endorse Lapras. Another great Pokemon is Gengar, who can use a variation on this set with Thunderbolt and Psychic and two other strong Special moves (or support). It has the added bonus of being invincible against all Normal-type and Fighting-type moves in the tournament.

Elite Member #1 - Lorelei

Elite Four: Lorelei
Specialty: Water & Ice-type

Details:
The first member of the Elite Four, Lorelei, has an excellent team to start off against. Although she says freezing moves are powerful, only two of her Pokemon can freeze you. Don't think you're off the hook though; when frozen in Generation I, you will never defrost unless hit by a Fire-type move, and unfortunately for you none of her Pokemon carry one. Her leading Pokemon, Dewgong, will use Rest to heal off all damage, so try and take it out quickly or during the turns it's asleep. The move Thunderbolt is excellent for that, and even moreso on a Lapras who can essentially wall her entire team. Slowbro needs to be dispatched extremely quickly as well as Amnesia is frightening: it boosts the Special stat by two, and with dual STAB moves in Surf and Psychic you'll want to avoid it. Cloyster has ludicrous Defense and will trap you with Clamp the way Blaine did with Fire Spin. Jynx isn't as bad as the rest of the team if you use strong Rock-type moves, but watch out for a mean Ice Punch from her should you break out a Golem or Onix. Her Lapras is also a terrifying with its Confuse Ray and Blizzard combo - your own Lapras would be the best counter.

Elite Lorelei DewgongCloysterSlowbroJynxLapras
Battle Type
Single Battle
Items
Level 54Level 53Level 54Level 56Level 56
Attacks:
Bubblebeam
Aurora Beam
Rest
Take Down
Attacks:
Supersonic
Clamp
Ice Beam
Spike Cannon
Attacks:
Surf
Psychic
Withdraw
Amnesia
Attacks:
Doubleslap
Ice Punch
Lovely Kiss
Thrash
Attacks:
Body Slam
Confuse Ray
Hydro Pump
Blizard
Elite Member #2 - Bruno

Elite Four: Bruno
Specialty: Rock & Fighting-type

Details:
Undeniably the easiest trainer in this challenge, Bruno is still a force to be reckoned with. His team is very akin to Brock and the Fighting Dojo master's teams, using Onix as well as the Hitmons as main staples. The two Onix both have powerful STAB Rock Slides; as well, one has Dig while the other has Earthquake. Though Hitmonchan has a very weak Special stat, it can be very dangerous if it gets up a few Double Teams and becomes invincible. Hitmonlee has Jump Kick and Hi Jump Kick, both extremely powerful attacks. A recommended strategy is to use Fly on it with something; if it tries to Jump Kick or Hi Jump Kick you in the turn you're in the air, it will miss and take bad damage from it, setting up for a guaranteed KO the next turn with Fly. Machamp has become a joke and can be completely countered by Gengar: it resists Strength, Karate Chop, and Submission and strikes back with a buffed-up Psychic.

Elite Bruno OnixHitmonchanHitmonleeOnixMachamp
Battle Type
Single Battle
Items
Level 53Level 55Level 55Level 56Level 58
Attacks:
Rock Throw
Dig
Slam
Screeh
Attacks:
Ice Punch
Fire Punch
Thunderpunch
Double Team
Attacks:
Double Kick
Double Team
Hi Jump Kick
Mega Kick
Attacks:
Rock Slide
Screech
Earthquake
Slam
Attacks:
Leer
Strength
Karate Chop
Submission
Elite Member #3 - Agatha

Elite Four: Agatha
Specialty: Poison & Ghost-type

Details:
This old bird makes great use of the Gastly line, stuffing her team with two Gengars and a Haunter. This generation has an issue with the type match ups - because of that, Psychics are impervious to Ghost-type moves. A good Pokemon here would be Alakazam, who can sweep the entire team with just Psychic and will have the speed to beat out Gengar and Golbat. As long as you don't get hit by physical attacks you'll be golden. Gengar #2 has Psychic, though, so watch out for an instant KO if you use anything weak to it. This team loves status moves, with everything being able to do almost anything under the sun, including poison, sleep, confusion, and paralysis (Gengar #1 can also heal with Mega Drain). Don't afford them any of those luxuries - confusion will ruin a physical sweeper if it hits itself, sleep will leave you susceptible to Dream Eater (which part of the team runs), paralysis will lower your much needed Speed, and poison is, well, poison. Ground-type moves are great here too because the Gastly line doesn't have Levitate in this generation, leaving four fifths of the team open to a strong Earthquake or Dig. Don't bother with Normal or Fighting-type moves here though because they'll be useless on the Ghosts. If you are put asleep at any point, remember you can save healing items by using the Poke Flute to awaken.

Elite Agatha GengarGolbatHaunterArbokGengar
Battle Type
Single Battle
Items
Level 56Level 56Level 55Level 58Level 60
Attacks:
Confuse Ray
Lick
Substitute
Mega Drain
Attacks:
Supersonic
Leech Life
Wing Attack
Toxic
Attacks:
Confuse Ray
Lick
Hypnosis
Dream Eater
Attacks:
Wrap
Glare
Screech
Acid
Attacks:
Confuse Ray
Psychic
Hypnosis
Dream Eater
Elite Member #4 - Lance

Elite Four: Lance
Specialty: Dragon-type

Details:
The king of the Elite Four, Lance, has the most frightening team of all. Gyarados, his lead, has decent Special in this generation and can wipe you out with Hydro Pump or Hyper Beam depending on what works better. Hyper Beam, by the way, is a staple of his team, and has an interesting quirk - if it knocks a Pokemon out it won't need to recharge. Luckily Gyarados has a double weakness to Electric-type moves, so hit it with those for maximum punishment. Lance has two Dragonairs; one has a moveset that includes Thunder Wave and Thunderbolt, and the other has a moveset that includes Ice Beam and Bubblebeam. Rhydon or Golem work wonders on one, and a Water-type with Ice Beam will on the other. Aerodactyl is fast and has great Attack but poor moves - in fact, a Gengar can wall it completely. The main attraction, Dragonite, has a combination of Thunder, Blizzard, and Fire Blast, with Hyper Beam thrown in to round things out. Such a hard hitting combonation means Starmies, Laprases, Rhydons, Golems, and other Pokemon that can exploit its weakness with STAB moves are highly threatened. It does have a double Ice weakness though - use it to your full advantage on something that resists at least a few of those moves. Your best bet would be something fast that can fire off an Ice Beam but isn't phazed by those extremely lethal elemental moves. Switching in on a Hyper Beam with a Rock-type who resists it then hitting with Rock Slide or Ice Beam on the rest turn is a great strategy.

Elite Lance GyaradosDragonairDragonairAerodactylDragonite
Battle Type
Single Battle
Items
Level 58Level 56Level 56Level 60Level 62
Attacks:
Hydro Pump
Dragon Rage
Leer
Hyper Beam
Attacks:
Thunderbolt
Slam
Thunder Wave
Hyper Beam
Attacks:
Wrap
Bubblebeam
Ice BEam
Hyper Beam
Attacks:
Wing Attack
Fly
Swift
Hyper Beam
Attacks:
Blizzard
Fire Blast
Thunder
Hyper Beam
Champion - Blue

Elite Four: Rival
Specialty: None

Details:
The circle is now complete. Your first and last challenge is with your rival, and he'll have just as many tricks as ever to face you. With a fully rounded out team you'll be hard pressed to find one Pokemon to take everything out. Balance everything out as always: don't train just one Pokemon (seriously don't) and make sure your type coverage is astute. Ninetales and Cloyster will try to trap you with Fire Spin and Clamp respectively, Sandlash hurts Grass-types with Poison Sting and Earthquakes anything that it doesn't miss, Exeggutor only has few damaging attacks, and Alakazam has fearsome Psychic power. Pay extra attention to his starter, who always has dual coverage (Poison/Fire for Flareon, Bug/Electric for Jolteon, and Water/Ice for Vaporeon) and an extremely strong STAB move. One approach to this is to just use Toxic on everything (use PP Up if you're doing this) and stall it out with Chansey or another bulky Pokemon. It's not exactly enthralling but if it's what works go for it. Good luck!

Champion Blue Sandslash Alakazam Exeggutor Magneton Ninetales Vaporeon
Battle Type
Single Battle
Items
Level 61Level 59Level 61Level 63Level 61Level 65
Attacks:
Earthquake
Slash
Poison Sting
Fury Swipes
Attacks:
Psybeam
Psychic
Kinesis
Recover
Attacks:
Barrage
Hypnosis
Stomp
Leech Seed
Attacks:
Thunderbolt
Thunder Wave
Screech
Swift
Attacks:
Fire Spin
Tail Whip
Quick Attack
Confuse Ray
Attacks:
Hydro Pump
Aurora Beam
Quick Attack
Mist
Evolve Into Vaporeon
Champion Blue Sandslash Alakazam Exeggutor Ninetales Cloyster Jolteon
Battle Type
Single Battle
Items
Level 61Level 59Level 61Level 63Level 61Level 65
Attacks:
Earthquake
Slash
Poison Sting
Fury Swipes
Attacks:
Psybeam
Psychic
Kinesis
Recover
Attacks:
Barrage
Hypnosis
Stomp
Leech Seed
Attacks:
Fire Spin
Tail Whip
Quick Attack
Confuse Ray
Attacks:
Ice Beam
Spike Cannon
Aurora Beam
Clamp
Attacks:
Thunder
Thunderbolt
Quick Attack
Pin Missile
Evolve Into Jolteon
Champion Blue Sandslash Alakazam Exeggutor Cloyster Magneton Flareon
Battle Type
Single Battle
Items
Level 61Level 59Level 61Level 63Level 61Level 65
Attacks:
Earthquake
Slash
Poison Sting
Fury Swipes
Attacks:
Psybeam
Psychic
Kinesis
Recover
Attacks:
Barrage
Hypnosis
Stomp
Leech Seed
Attacks:
Ice Beam
Spike Cannon
Aurora Beam
Clamp
Attacks:
Thunderbolt
Thunder Wave
Screech
Swift
Attacks:
Flamethrower
Quick Attack
Smog
Fire Spin/a>
Evolve Into Flareon