I apologize, I don’t have much experience with RUG delver (though I’m very aware of the Mongoose’s shroud). My friend mentioned he runs a charm or 2 in his sideboard and after discussing it with him, it’s mainly to protect Delvers and win Goyf wars.

I agree wholeheartedly (I’m a big fan of Thespian’s Stage..and even like the flavor of it). It has a lot of potential in Legacy that many players don’t consider…I might give it a try as a 1 of in Maverick decks as a potential 5th wasteland with other options.

1. It’s not a dead card in your hand if its your first land drop OR if there isn’t a land on the board you don’t want to copy.

2. It doesn’t come in tapped.

3. If its on your side of the board, it actually is pressure in itself, in the sense that your opponent might not want to play certain lands just to restrict you from copying it and using it as your own. Of course Vesuva is more quick and efficient than Thespians, but it’s generally the same thing.

I hope it goes places in Legacy.