Complex sentence: Following Battleground, Enzo and Cass proceeded to feud with Chris Jericho and Kevin Owens, which culminated at SummerSlam, where Jericho and Owens defeated Enzo and Cass.
Split into simpler sentences: Following Battleground, Enzo and Cass proceeded to feud with Chris Jericho and Kevin Owens. The feud culminated at SummerSlam, where Jericho and Owens defeated Enzo and Cass.