This Saturday, Alec Baldwin kicks Saturday Night Live’s 42nd season off with a ripe parody target: Donald Trump, another broad-shouldered New Yorker who also doesn’t mince words. Every time SNL’s host with the most (16 Baldwin-hosted episodes to date) drops in, the guy’s a total pro. The thing that makes the Baldwin effect reliably funny isn’t just his self-assured stature: he’s an experimental team player, and everyone around him is funnier for it. Whenever he takes his homecoming king crown back, he reminds fans why the show loves him.