Byron’s sturdy Steel-type team can be difficult to push through, so steel yourself for a rough fight.
His Team
Byron brings three Pokémon to face you with:
Byron will use a singleHyper Potionand a singleFull Restorewhen his Pokémon are low.
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Strategy
Byron’s team is quite defensive, proving annoying to take down even if you have an overwhelming advantage.Expect for all of his Pokémon to survive at least one hit.
Bronzor is more of a nuisance than a threat.Trick Roomwill reverse the flow of battle, letting slower Pokémon go first, and Sandstorm will chip down any Pokémon that’snotRock,Ground, orSteel-type. Since it hasLevitate, you’ll need aDarkorFire-typemove to deal with this near-unbreakable Pokémon.
Steelix boasts a lot of weaknesses but makes up for it by havingSturdy. It’s guaranteed to survive at least one attack. If it can KO your Pokémon in that one chance, you may be in trouble. It’s obvious to keepFairy,Electric,Rock, andIce-typePokémon away from Steelix, but you should also avoid usingWaterandFlying-typesas well unless you’re confident they can take aThunder Fang.
Strangely enough, Steelix may actually be beneficial to you. Since it has Sturdy, if you may one-shot it,Byron will be nigh guaranteed to use a healing item on its next turn. Keep one-shotting it and Byron will waste all of his healing items.
Bastiodon doesn’t do much damage and its typing isn’t fantastic. It takes four times the damage from bothGroundandFighting-typemoves, as well as double damage fromWatermoves. But it’s a sheer wall, so taking it down is a hassle. Just keep slugging away until it goes down.
For tips on how to make a Bastiodon a fun team member, check outBest Nature for Shieldon and Bastiodon in Pokémon Brilliant Diamond and Shining Pearlon Pro Game Guides.