Storm Manipulation

Hey everyone! I'm writing a book, and I'm having trouble finding a power for one of my characters. I already have two characters created already. One of the characters, the main character, has the power to manipulate Poisonous Fire and is part Dragon. He also has hard scales that make him invulnerable. His scales are small and look like human skin, but under a magnifying glass, you can see the scales clearly. His weakness is extreme cold. Now, he can survive in the cold, but his fire power decreases. If he stays in the cold for too long, he won't be able to use his fire. This character is a prince and is the one who convinced his family to welcome the immigrants who lost their homes in the unnatural storm (that I'm in the process of creating a name for to avoid calling it the "unnatural storm"), into the country.

The other character is a girl who can manipulate the wind and electricity. She can also move at Supersonic speeds and is an assassin for hire. Her emotions are linked to the weather (something she can't control), and depending on how extreme the emotion is, it can summon a storm that is strong enough to wipe out an entire continent, which she has done before accidentally.

This last character I'm having a hard time finding a power for. I'm looking for something that works well with the other characters' powers to kinda balance it out. This character is similar to Leonardo DiCaprio's character, Frank Abagnale, Jr., in the movie Catch Me If You Can. This character uses his abilities to help him con people, which helps put food on the table for him and his 4 younger siblings. They're all immigrants who lost their home due to an unnatural storm that also unalived their family. I need help finding a power for this guy. Any ideas?