Conversation so far:
Who is X-Infernus?
X-Infernus is a four-issue comic book mini-series that started in December 2008.
What did X-Infernus do with Nightcrawler?
What were some interesting things about Nightcrawler in X-Infernus?
The X-Men gathered and Nightcrawler was put in charge of a team of X-Men to go help save Magik.
Were the X-Men and Nightcrawler able to save Magik in X-Infernus?
Kurt, along with Colossus, Cyclops, and the former New Mutants team, convinced Majik to stay with them and join the X-Men.
Did Nightcrawler save anyone else in X-Infernus besides Majik?

Question: did he become a leader?
Self-contained rewrite: Did Nightcrawler become a leader in X-Infernus?