The first tentative flaps are like a song to his soul.

Whirler Virtuoso

When Whirler Virtuoso enters the battlefield, you get {E}{E}{E} (three energy counters).
Pay {E}{E}{E}: Create a 1/1 colorless Thopter artifact creature token with flying.

When this creature enters, you get {E}{E}{E} (three energy counters).
Pay {E}{E}{E}: Create a 1/1 colorless Thopter artifact creature token with flying.

When Whirler Virtuoso enters the battlefield, you get {EEE} (three energy counters).
Pay {EEE}: Create a 1/1 colorless Thopter artifact creature token with flying.