Come on Mas! (In the absence if the great Nairo Quintana I have to pull for someone from Movistar.)
Some rain now
Cheering for Mas to win is a fool's errand, I'm afraid.
Your suggestion of Almeida gifting him the win if they drop Healy is probably the best shot.
He has a greater chance of wiping out on the descent back into Eibar, unfortunately, as this would be a very Enric Mas thing to do. He's really not a great descender.
Realistically, he probably just rides on the front as much as he can to extract as much time as possible, and finishes 3rd or 4th at the line.