stupid question for the elite four

[Mimispider]

so i was looking at my old pokemon heart gold game and i decided to play a bit and get the legendaries. but i am having trouble with the champion. the only three pokemon that stand a chance in front of the elite four and lance are:
Meganioum lvl 63
shiny Arceus lvl 33
Ho-oh lvl 49

if anyone has any ideas about how to beat Lance, plz let me know. i have been fighting him for half a month

[Inari]

I trained all my team to level 50 lol. Catch a Swinub, Mamoswine is a good poke against him but one of his Dragonites has Fire Blast so you gotta be careful of that. I did it with Ninetales/Kingler/Vileplume/Mamoswine/Dragonair/Ampharos. Status moves like Sleep powder are good. But having a diverse team of level 50 is a good way to go.. I killed my Lugia LOL who needs that thing.

[Mimispider]

thx for the advice, but how do i get them ALL at lvl 50?

[Inari]

I got a lucky egg from my Platinum game and trained in Victory Road and the route before Victory road. It was tedious but Kanto is worth the training lol

[Mimispider]

oh ok thx so much. i am pretty sure it will work