Ruby and Sapphire were the first to bless the series with the wonder of double battles, a feature that would later become a staple of future instalments. Twins Tate and Liza showed us how truly exhilarating these battles could be, existing cohesively as the first double gym leaders. Unfortunately for players, opposing Pokémon Solrock and Lunatone are both incredibly tough, so facing them both at once proves to be a bit of a nightmare. Firstly, both Pokémon possess the ability of levitate, making them immune to otherwise powerful ground-type attacks. Solrocks dual status of fire and psychic types allows it to pack a varied range of moves and will often use sunny day to enhance them. Lunatone on the other hand, frequently uses hypnosis to send enemies off to sleep before inflicting substantial damage.