"I've seen those on the orcs after the first attack," Daud affirms, conveniently leaving out the part where he owns one of those. Strange is free to come to his own conclusions on how he speaks with such authority, but...

"The one he has is of a better make. It make's the orc's talismans seem like they were meant to imitate it."

Which, yes, not helping with the more questions thing. As it is, when Strange lobs the coin over, Daud shifts a hand up where he estimates the coin will land. With no idea what Strange's done to the thing, he's not eager to get ahold of it, but given he's wearing gloves and the magician's been fiddling with it this whole time, he can at least reasonably guess it's not enchanted with corrosive acid or anything.