FX's Legion has come to an end with this week's episode. 1 / 8
Those characters still remaining must go through drastic changes. 2 / 8
The biggest transformation comes from time traveler Switch. 3 / 8
She's not actually a mutant, we find, but a fourth-dimensional being. 4 / 8
The Shadow King, who has gone through many incarnations, meets himself in the past. 5 / 8
Changes to David's past mean he'll grow up better this time around. 6 / 8
David and Syd have a chance to reconcile before they fade out. 7 / 8
Legion, created by Noah Hawley, is ending after three seasons on FX. 8 / 8