Thunderwing tricks Jetson Storm to join him

This is how

[after Thunderwing drains the Unicorn's magic. He notices a pony. When he goes towards the pony, the pony pulls off his disguise to reveal Jetson Storm, brother of Jetfire]

Jetson Storm: Hello, Thunderwing. I have heard about you.

[Thunderwing gets confused with a question Mark above his head]