Every distinct wording since 2010, newest first.
October 13, 2023 · Doctor Who
Different partner abilities are distinct from one another and cannot be combined. For example, you cannot designate two cards as your commander if one of them has “partner” and the other has “partner with [name].”
April 22, 2021 · Strixhaven
“Partner with [name]” is a variant of the partner ability. “Partner with [name]” represents two abilities. One is a static ability that modifies the rules for deck construction. Rather than a single legendary creature card, you may designate two legendary creature cards as your commander if each has a “partner with [name]” ability with the other’s name. You can’t designate two legendary cards as your commander if one has a “partner with [name]” ability and the other isn’t the named card. The other ability represented by “partner with [name]” is a triggered ability that means “When this permanent enters the battlefield, target player may search their library for a card named [name], reveal it, put it into their hand, then shuffle their library.”