Grocer Pano:
Ah yes, Beleth's Silver Dragon. I will trade 1 Beleth's Silver Dragon for 10 Silver Dryads and 10 Silver Undines. Or perhaps you would prefer a game of chance?
Accept exchange rate
Play game. [Guess correctly in 2 tries - 4 Silver Dryads and 4 Silver Undines]
Play game. [Guess correctly in 3 tries - 8 Silver Dryads and 8 Silver Undines]
Play game. [Guess correctly in 4 tries - 9 Silver Dryads and 9 Silver Undines]
Explanation of game