Complex sentence: She uses her Geass to "read the lines of the future", easily destroying the Britannian military and she then prepares to kill Clovis, but decides to spare him on Nunnally's whim.
Split into simpler sentences: She uses her Geass to "read the lines of the future", easily destroying the Britannian military. She then prepares to kill Clovis, but decides to spare him on Nunnally's whim.