The prayer Magen Avoth, which is an abbreviation of sven prayers in the Amidah

A single abbreviated blessing resembling the repetition of the prayer leader (Shatz), which is an epitome of the Prayer of Seven, recited in places where there is no wine during the Amidah prayer on Friday night, for occasions where it is not appropriate to perform the full seven blessings.

(“In a place where there is no wine, the prayer leader goes down before the ark and recites a single blessing in the form of the seven, and concludes: ‘Who sanctifies Israel and the Sabbath.’” — Jerusalem Talmud, Berakhot 8:1 “And a prayer leader who descends before the ark for the evening prayer on a Festival that falls on Shabbat mentions in the abridged seven-blessing only Shabbat — for if not for Shabbat, there would be no blessing in the form of the seven.” — Meiri, Beit HaBechirah on Shabbat 24b)

Translation