Trial of Strength

When Trial of Strength enters, create a 4/2 green Beast creature token.
When a Cartouche you control enters, return Trial of Strength to its owner's hand.

Amonkhet Remastered

When Trial of Strength enters the battlefield, create a 4/2 green Beast creature token.
When a Cartouche enters the battlefield under your control, return Trial of Strength to its owner's hand.

"Instincts to guide. Strength to overcome."

Amonkhet

Each Trial has an ability to return to your hand when a Cartouche enters the battlefield under your control. The Trial is returned to its owner’s hand only if it’s on the battlefield as the ability resolves.