The Mechanist, Aerial Artisan - Avatar: The Last Airbender - 64

Legendary Creature — Human Artificer Ally

Mana Cost: {2}{U}

Whenever you cast a noncreature spell, create a Clue token. (It's an artifact with "{2}, Sacrifice this token: Draw a card.")
{T}: Until end of turn, target artifact token you control becomes a 3/1 Construct artifact creature with flying.

P/T: 1/3

Rare · Avatar: The Last Airbender · #64 (TLA)

Illustrated by Le Vuong