changeling mtg cards War-Spike [Modern Masters] – North Game Den sacrifice it unless you exile another creature you control MtG Trading Card Game Modern

Magic: The Gathering Cards That Are Worth A Ton Of Money Created in 1993 by mathematician Richard Garfield, Wizards of the Coast's Magic: The Gathering (aka MTG or simply Magic) was the world's first modern collectible trading card game, or TCG

Consequently, Can't Stay Away essentially gives the deck additional copies of Greasefang to play

You could include a full cycling package, with Fluctuator, New Horizons, and perhaps a different set of wheels

Noncreature cards generally stay face down unless another effect, such as Zimones ability, specifically turns a permanent face up or an effect exiles and returns the card face up