M10: Sphinx Ambassador Theros Beyond Death Activate only if you control

Activate only if you control a Swamp or a Mountain

Activate only if Luminarch Ascension has four or more quest counters on it

and triggers fully managed by the app

it’ll test the limits of your carrying capacity

Return that card to the battlefield under its owner's control at the beginning of that player's next end step

M10: Sphinx Ambassador Theros Beyond Death Activate only if you controlFlying Whenever Sphinx Ambassador deals combat damage to a player, search that player's library for a card, then that player chooses a card name. If you searched for a creature card that doesn't have that name, you may put it onto the battlefield under your control. Then that player shuffles.