Hello, I like this idea of the pokemon not getting healed when using an escape rope, big +1. It will let you have more freedom.
However, if this doesn't go through, I can recommend you all to get a bunch of Ralts, either by choosing it in each possible 3rd reward of bosses (Synchro option if you're not lazy like me lol) or directly hunting it.
Why ? It has access to memento via egg moves, you all know what it does . Moreover, you can lvl it up for popular repels and at the same time it will faint quickly and act as a sync for all pokemon of the said nature.
Peace.