Yet when she walked after William, Becky started to sense the weak signs of a very lethal toxin, spreading in the air!
She started to emit her spirit power around, using it as a pure defensive shield against toxins. This was the most primitive, yet the most effective, type of defence against toxins, especially when masters didn't know the nature and special properties of the toxins.
"This formation is useful when fighting against a large number of enemies," William slowly explained, "I'm sure you can feel it now, the toxin spreading in the air. This isn't just a normal toxin; it can steal your enemy's spirit power and lend it over to you and your allies."
"What?!!" Becky's eyes grew wide when she heard what he said. And William slowly nodded.
"That's why using it against just the two of us, and with the lack of their masters around, means they have wasted this precious formation without gaining anything!"
