
Eminence — As long as The Ur-Sphinx is in the command zonecommand zoneThe area where your commander waits before you cast it, and where it may return instead of going to the graveyard, exile, your hand or library. or on the battlefield, other Sphinx spells you cast cost less to cast.
FlyingFlyingCan only be blocked by creatures with flying or reach.
Whenever one or more Sphinxes you control attack, each player mills that many cards. For each player, you may cast a card that player milled this way without paying its mana cost.
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.