Yazmat

He had Solarbeam because he used to lead with a drought Ninetails. But now that Typhlosion leads with Darmanitan Energy Ball would be much more useful. But because he can´t learn Energy Ball she switched it again.

Pretty much there. Thanks for explaining, forgot why she switched typhlosion solarbeam. For now, i just think HP grass. As you said, solarbeam would be useless for no drought in first round.

Unless if she choose another pokemon for typhlosion in first round and set typhlosion in another turn with ninetales.

...like Groudon