Origin of the Sphinxes on The Chariot
(Click on to view VII by LÚvi.)
Although Eliphas LÚvi published only one modern Tarot card,
the Chariot, his influence on designers of decks was significant.
His version of VII The Chariot included for the first time two
Egyptian-style sphinxes (one light and one dark) in lieu of the
traditional horses. Oswald Wirth and Pamela Colman Smith
included sphinxes in their decks, as have some other artists.
PS: The Golden Dawn specifies "two horses harnessed together."