How do I beat Steven in Alpha Sapphire?

My team:Latias lv. 62 w/mega stoneDiveDragon PulseWaterfallFlyBlaziken lv. 63 w/mega stoneFlame ChargeSky UppercutBlaze KickRock Smash

Aggron lv. 47 w/mega stoneRock SlideTake DownDouble-EdgeIron Tail

Mightyena lv. 58Sucker PunchStrengthAssuranceCrunch

Breloom lv. 52AbsorbCutDynamic PunchLeech Seed

Linoone lv. 53SlashDouble-EdgePin MissileSurf

I am able to get through the Elite 4 and Steven’s first 5 Pokemon pretty easily, but I have a lot of trouble defeating his Mega Metagross. I have contemplated switching Dragon Pulse with Shadow Ball but I don’t know if that would do me any good. Any suggestions?

Pleaselog inorregisterto add a comment.

It seems the easiest way to beat Steven with your team is to use mega Aggron, as it resists all of Metagross’s attacks. It should be able to 1v1 the Metagross if you teach earthquake to it.

Just in case other people come across this post looking for an answer.

A very easy, but cheesy way to beat Steven is by using (Mega) Gyarados. I just beat Steven with a lvl. 51 Gyarados by setting up against Skarmory.

Since he doesn’t deal Mega Gyarados that much damage, I was able to do 6x Dragon Dance, while healing Gyarados 2x with a potion.

After that his entire team gets OHKO by either Waterfall or Crunch.