Complex sentence: As part of the move, the Moose were required to affiliate with an NHL club and became the top affiliate of the Vancouver Canucks, a partnership that lasted all ten seasons the Moose would play in the AHL.
Split into simpler sentences: As part of the move, the Moose were required to affiliate with an NHL club and became the top affiliate of the Vancouver Canucks. This partnership would last all ten seasons the Moose would play in the AHL.