No Kings beat writer believes there is any value to any Muzzin to LA trades. He would need to waive, and the Kings (who have capspace) are still in on Chychrun, Forsberg, and possibly Gaudreau.
You think Muzzin is leagues better than Edler, here are their stats for this last season, side by side:
Edler: 41GP, 3G, 19P, +18, 18:28 ATOI, 52.1 Corsi% / 54.4% Fenwick
Muzzin: 47 GP, 3 G, 14P, -6, 20:44 ATOI, 48.1% Corsi / 47.9 % Fenwick
You either need to admit that Muzzin's concussions really messed him up last season or that he is losing a step. Either way you don't need to explain to us who Muzzin is, and we don't need to see much to understand that he has lost a step.