The Mechanist, Aerial Artisan

Legendary Creature — Human Artificer Ally • Mana cost: {2}{U} • Avatar: The Last Airbender • Rare

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.

"We're just in the process of improving upon what's already here."

Illustrated by Le Vuong.