You can cast it as Coil and Catch for an instant-speed spell that draws three cards and discards one, and then Marang River Regent shuffles back for more potential casts just like the aforementioned Green Sun's Zenith cycle
PSA 10 graded copies command 53,000+ at buyback, with retail closer to 80,000
This triggers Mana Echoes, making two lots of four generic mana (as you have Pashalik Mons, Skirk Prospector, another goblin, and then both goblin tokens entering at the same time)
Lost in the Spirit World The Spirit Oasis Thriving Isle 6 Island [QMIWFqwRUK1NLBxjbbXXL] Island Appa [5qtAqNeW80BB7BCgfUsB1S] 0017_MTGTLA_JSTheme: Underwater Jumpstart Theme Card Flying Dolphin-Fish Invasion Submersible Rowdy Snowballers Turtle-Seals Tui and La, Moon and Ocean Giant Koi Serpent of the Pass Unagi's Spray Octopus Form Honest Work Coastal Piracy White Lotus Hideout Thriving Isle 6 Island [QMIWFqwRUK1NLBxjbbXXL] Island Appa [5qtAqNeW80BB7BCgfUsB1S] 0010_MTGTLA_JSTheme: Adaptive Jumpstart Theme Card Glider Kids Kyoshi Battle Fan Rowdy Snowballers Katara, Bending Prodigy Princess Yue The Blue Spirit Teo, Spirited Glider Giant Koi Boomerang Basics Frantic Search Lost in the Spirit World Waterbending Lesson Thriving Isle 6 Island [QMIWFqwRUK1NLBxjbbXXL] Island Appa [5qtAqNeW80BB7BCgfUsB1S] 0018_MTGTLA_JSTheme: Wise Jumpstart Theme Card Gran-Gran Forecasting Fortune Teller Otter-Penguin Katara, Bending Prodigy Rowdy Snowballers Messenger Hawk Turtle-Seals Consider Waterbender's Restoration Waterbending Lesson Coastal Piracy Whirlwind Technique Thriving Isle 6 Island [QMIWFqwRUK1NLBxjbbXXL] Island Appa [5qtAqNeW80BB7BCgfUsB1S] 0018_MTGTLA_JSTheme: Wise Jumpstart Theme Card Tiger-Seal Otter-Penguin Knowledge Seeker Sokka, Lateral Strategist Rowdy Snowballers Messenger Hawk Turtle-Seals The Blue Spirit Consider It'll Quench Ya
Still, it points to the existence of a collector market currently on the hunt for the next trading card game
