Losing the ability during the game doesn't cause either to cease to be your commander
Each platform has its strengths, so lean into the ones that match your goals, your collection, and the speed you want to move cards
I looked at the all, and I think I've played all but three of them at some point in time in my game playing days, as it's my 2nd favorite color combination to draft for Abedraft (a draft I have of every card ever printed save for around 15 that are too pricey to pickup)
Extricator of Sin Extricator of Sin is an okay sacrifice card on its own, transforming an insignificant card like Doomed Traveler or a random Treasure into a 3/2
Otherwise, she's better kept out of harm's way to continue producing Squirrels by the boatload
Being Esper instead of a normal Boros