A great mirage, a dream of wings and silver.

Argent Sphinx

Flying
Metalcraft — {U}: Exile Argent Sphinx. Return it to the battlefield under your control at the beginning of the next end step. Activate only if you control three or more artifacts.

Modern Masters 2015

Flying
Metalcraft — {U}: Exile Argent Sphinx. Return it to the battlefield under your control at the beginning of the next end step. Activate this ability only if you control three or more artifacts.

Duel Decks: Mirrodin Pure vs. New Phyrexia

Scars of Mirrodin

If you activate Argent Sphinx’s metalcraft ability during a turn’s end step, Argent Sphinx will return to the battlefield at the beginning of the following turn’s end step.

If you activate Argent Sphinx’s metalcraft ability, Argent Sphinx will return to the battlefield at the beginning of the next end step no matter how many artifacts you control at that time.

If you control an Argent Sphinx owned by another player and activate its ability, Argent Sphinx will return to the battlefield under your control at the beginning of the next end step. You’ll retain control of it indefinitely.