In the end, Raiden confirmed those connections during the duel… he focused on dodging the attacks and then landing some blows on Javier when he had the chance. Eventually, he saw Javier sweating cold.
"That is enough," Altria declared. "Some of you have already noticed how the paths are connected to each other, but it is still a good idea to feel that on your bodies."
In the end, Altria calls Ruth next to fight another girl who has a fighting style similar to Javier's. Even though she couldn't use a lot of sand around, she still could control a bit of the dust in the air to blind the opponent for a moment. She used that chance to punch her in the stomach. She didn't cause much damage, though.
The opponent focused on defense for a while, and she charged at Ruth as much as possible until she had the chance to kick her in the leg and almost break it. Altria ended the duel right there.