After walking some distance, he asked, "If there is time in the next few days, can I spar with you?"
Luke didn't think much of it. "An hour every day, preferably between lunch and dinner."
T'Challa nodded quickly. "Okay."
Luke raised an eyebrow. "You have a lot of free time recently?"
"My father was injured, and will soon pass his position to me, so our initial plan to make contact with the outside world has been put on hold for now." T'Challa nodded. "Once I take that position, I won't have time to look for you."
Luke made a sound of acknowledgment and said casually, "Our Justice League is also interested in the idea of a cooperation. What do you think?"
"That is doable; in our initial plan, you and the Avengers were the parties with the top priority," said T'Challa.
Luke and Tony had used the matter of Ultron stealing vibranium to secure a connection with Wakanda.