"Stop doing other things, brother! Let's start your magic training right now!" Ethan said as he grabbed Matthew's hand with his left hand and held his magic staff in his other hand.
"Wait a minute Ethan, why do you talk as if you're certain that I can use magic now?" Matthew asked as he tried to calm Ethan down.
He was still wasn't sure whether it would actually work for him. And he didn't want to get his or Ethan's hopes up by saying that he will certainly be able to use magic now. Moreover, he didn't know whether only having the troll's rapid regeneration genetics and its stomach would count him as a troll and enable him to use their magic.
That is Matthew's plan from the start when he saw the trolls were able to use magic. At first, he didn't even know about the troll's rapid regeneration trait, when he saw another demihuman village, one of his thoughts was whether they are friendly to him and if they had a mage in their village.